But first, read this 90-point article.

Rules for on-site investigation of criminal cases by public security organs

Chapter I General Principles

Article 1 In order to standardize the on-site inspection of criminal cases by public security organs and ensure the quality of on-site inspection, these Rules are formulated in accordance with the relevant provisions of the Criminal Procedure Law of People's Republic of China (PRC) and the Procedures for Handling Criminal Cases by Public Security Organs.

Article 2 On-the-spot inspection of criminal cases is an investigation activity in which investigators use scientific and technological means to conduct an inspection of places, articles, persons and corpses related to crimes.

Article 3 The tasks of the on-site inquest and inspection of criminal cases are to find, fix and extract traces, physical evidence and other information related to the crime, preserve on-site materials, judge the nature of the case, analyze the criminal process, determine the direction and scope of investigation, and provide clues and evidence for investigation and criminal proceedings.

Article 4 The public security organ shall conduct an inquest and inspection on the scene of a criminal case that meets the conditions for inquest and inspection in time.

Article 5 The contents of on-site inquest and inspection of criminal cases include: on-site protection, on-site inquest and inspection, on-site investigation, on-site search and tracking, on-site experiment, on-site analysis, on-site treatment, on-site review and so on.

Article 6 On-site inquests and inspections of criminal cases shall be organized and implemented by the investigation departments of public security organs at or above the county level. When necessary, people with specialized knowledge may be assigned or hired to participate in the on-site inquest and inspection.

Seventh public security organs on-site inspection personnel should have the professional knowledge and skills of on-site inspection, and have the qualification of on-site inspection.

Eighth on-site inspection shall strictly abide by the relevant provisions of national laws and regulations, and shall not be interfered or obstructed by any unit or individual.

Article 9 On-site inquests and inspections shall be based on facts to prevent subjective assumptions.

Article 10 On-site inspection and inspection personnel of public security organs should pay attention to protecting citizens' lives and try their best to avoid or reduce losses of public and private property.

Eleventh public security organs should provide necessary safety protection facilities and equipment for on-site inquests and inspectors.

On-site inquests and inspectors should enhance their safety awareness and pay attention to their own protection.

Chapter II Division of Responsibilities between On-site Inspection and Inspection

Twelfth public security organs at the county level shall be responsible for the on-site inquest and inspection of all criminal cases within their jurisdiction. When the public security organ at a higher level deems it necessary, it can directly organize and lead the on-site inquest and inspection for cases with major cases and complicated scenes.

Thirteenth public security organs at higher levels shall provide technical support for the on-site inspection of criminal cases by public security organs at lower levels.

Article 14 On-site inquests and inspections of criminal cases involving two local public security organs at or above the county level shall be negotiated by the relevant local public security organs, and designated by the public security organs at higher levels when necessary.

Article 15 Xinjiang Production and Construction Corps, railway, transportation, civil aviation, forest public security organs and customs anti-smuggling departments are responsible for on-site inquests and inspections of criminal cases under their jurisdiction.

Article 16 On-site inquests and inspections of criminal cases of public security organs, the army and the armed police forces shall be determined in accordance with the relevant provisions on the division of jurisdiction between public security organs and the army in criminal cases.

Article 17 If the people's courts, people's procuratorates, state security organs, military security departments, prisons and other departments need the assistance of public security organs in conducting on-site inquests and inspections and issuing power of attorney, the relevant public security organs shall provide assistance.

Chapter III Protection of Sites

Article 18 After receiving the alarm of criminal cases, the public security organ in the place where the case occurred shall immediately send personnel to the scene and do a good job in site protection.

Nineteenth people's police responsible for protecting the scene shall, according to the specific circumstances of the case, delimit the scope of protection, set up warning lines and publicity columns, and prohibit irrelevant personnel from entering the scene.

Twentieth people's police responsible for protecting the scene shall not enter the scene, and shall not touch the traces, articles and bodies of the scene, except for emergencies such as rescuing the wounded and protecting physical evidence. When dealing with emergencies, we should try our best to avoid destroying traces, objects and bodies at the scene.

Twenty-first people's police responsible for protecting the scene should take corresponding protective measures for traces, objects and bodies that may be damaged by natural and man-made factors.

Article 22 The time to protect the scene is from the discovery of the scene of a criminal case to the end of the on-site inquest and inspection. If the on-site inquest or inspection cannot be completed, it shall continue to protect the whole or part of the site.

Article 23 The people's police responsible for on-site protection shall promptly report the on-site protection to the on-site inspection commander.

Chapter IV Organization and Command of On-site Inspection

Article 24 When conducting on-site inquests and inspections of criminal cases, public security organs shall, under unified command, carefully organize, clearly define the division of labor, carry out their responsibilities and complete various tasks in time.

Article 25 The commander of an on-site inquest or inspection shall be a people's police with professional knowledge of on-site inquest or inspection and the ability of organization and command.

Article 26 Commanders of on-site inquests and inspections shall perform the following duties according to law:

(a) to decide and organize the implementation of emergency measures and conduct on-site inspection and inspection;

(two) to formulate and implement the on-site inspection and inspection work plan;

(three) to participate in the on-site inspection and inspection personnel division of labor;

(four) to guide and coordinate the on-site inspection and inspection work;

(five) to determine the witnesses of the on-site inspection and inspection;

(six) access to on-site inspection and inspection records;

(7) Organizing on-site analysis;

(eight) to decide on the handling of the scene.

Twenty-seventh on-site inspection and inspection personnel shall perform the following duties according to law:

(a) the implementation of on-site emergency disposal;

(2) Conducting on-site investigations and visits;

(three) to find, fix and extract traces and material evidence;

(4) Recording the on-site protection, the original situation of the site and the process and discovery of the on-site inspection, and making a record of the on-site inspection;

(five) to participate in on-site analysis;

(six) put forward on-site treatment opinions.

Chapter V Field Inspection and Inspection

Twenty-eighth public security organs shall not be less than two people when conducting an inquest or inspection on the scene of a criminal case.

When conducting an inquest or inspection of the site, one or two citizens irrelevant to the case shall be invited to testify.

Twenty-ninth on-site inspection personnel should know the occurrence, discovery and on-site protection of the case after arriving at the scene. If it is necessary to take emergency measures such as searching, tracking, intercepting, identifying, security checking and controlling stolen goods, it shall immediately report to the on-site commander and deal with it decisively.

If it is possible to use police dogs for tracking or identification, they should immediately use police dogs to search, track and extract related articles and odor sources without destroying the traces and physical evidence at the scene.

Thirtieth when conducting an inquest or inspection on the scene of a violent crime case, armed vigilance may be deployed according to the actual situation to prevent new harmful consequences.

Article 31 In case of explosion, gun involvement, arson, poisoning, radioactive substances, infectious diseases, dangerous places, etc. , which may endanger the personal safety of the inquest or inspector, the danger shall be eliminated first, and then the on-site inquest or inspection shall be carried out on the premise of ensuring the personal safety of the inquest or inspector.

Thirty-second personnel who perform the task of on-site inspection shall wear the certificate of on-site inspection of criminal cases. The "Criminal Case Scene Investigation Certificate" is uniformly issued by the Ministry of Public Security.

Article 33 Personnel conducting on-site inquest and inspection shall use corresponding personal protective equipment and wear hats, gloves and shoe covers.

Thirty-fourth inspection, inspection and testing personnel are not allowed to enter the site. If it is really necessary to enter the site, it must be approved by the commander and enter and leave the site according to the designated route.

Thirty-fifth on-site inspection shall be carried out in accordance with the following steps:

(a) to inspect the site and delimit the scope of the inspection and inspection;

(two) according to the "first static before moving, first down and then up; The principle of "first focus, then general, first fixation, then extraction", and the process of inspection and inspection shall be determined according to the actual situation on site;

(three) preliminary inspection and inspection of the scene, fixed and recorded the original situation of the scene;

(four) detailed inspection and inspection of the scene, found, fixed, recorded and extracted traces and material evidence;

(five) record the on-site inspection and inspection.

Article 36 When conducting an inquest or inspection of a crime scene involving electronic data, the relevant equipment shall be disposed of in accordance with relevant norms to protect electronic data and other traces and material evidence. When necessary, you can assign or hire professional and technical personnel to copy relevant electronic data.

Article 37 When conducting an inquest or inspection on the scene of an inflammatory case, appropriate methods shall be adopted to block slogans, leaflets, posters and other articles involving reactionary content, and the scene shall be cleaned up in time after the end of evidence collection to prevent proliferation and adverse effects.

Article 38 In order to determine the physical characteristics, injuries or physiological conditions of victims and criminal suspects, physical examinations may be conducted.

If the criminal suspect refuses to check, if the investigators think it is necessary, they may carry out compulsory inspection with the approval of the person in charge of the case-handling department.

Physical examination of women shall be conducted by female investigators or doctors, and forensic doctors may be appointed or invited to participate when necessary.

The inspection shall make a record, which shall be signed or sealed by the investigators, inspectors and witnesses participating in the inspection.

Article 39 The forensic doctor shall participate in the inquest and inspection of the scene where there is a body.

Article 40 In order to determine the cause of death, a corpse may be dissected with the approval of the person in charge of the public security organ at or above the county level.

Forty-first autopsy shall notify the family of the deceased to be present, and ask the family of the deceased to sign or seal the notice of autopsy. If the family of the deceased refuses to be present or refuses to sign or seal without justifiable reasons, the corpse may also be dissected, but it shall be indicated in the notice of autopsy. For unidentified bodies, if it is impossible to inform the families of the deceased, it shall be noted in the record.

When dissecting a foreigner's body, the family members of the deceased or the relevant officials of the country's embassy or consulate in China shall be notified to be present, and the family members of the deceased or the relevant officials of the country's embassy or consulate in China shall be invited to sign or seal the autopsy notice. If the family members of the deceased or the relevant officials of the embassy or consulate of the country to which they belong refuse to be present or refuse to sign or seal without justifiable reasons, the corpse may also be dissected, but it shall be indicated in the notice of autopsy. If it is impossible to notify the family of the deceased or the relevant embassy or consulate of the unidentified foreigner's body, it shall be noted in the record.

Forty-second before moving the corpse on the scene, the original condition of the corpse and the surrounding traces and objects should be photographed and videotaped, and relevant traces and material evidence should be extracted.

Article 43 Autopsy shall be conducted in the autopsy room. If it is really necessary to dissect near the scene due to emergency or limited conditions, isolation and shielding measures should be taken.

Article 44 When examining and dissecting a corpse, the fingerprints and palm prints of the corpse shall be extracted. If necessary, the contents of blood, urine, stomach and related tissues and organs are extracted.

Article 45 When examining and dissecting a corpse, photographs and videos shall be taken. Detailed photos and videos should be taken of the traces of physical injuries and related accessories.

The appearance, physiological and pathological features, clothes, carried articles and wrapped articles of the unknown corpse were inspected and recorded in detail, and identification photos were taken.

Chapter VI Work Records of On-site Inspection

Forty-sixth after the completion of the on-site inquest and inspection, a written record of the on-site inquest and inspection shall be made in time.

On-site inspection records include on-site inspection records, on-site maps, on-site photos, on-site videos and on-site recordings.

Forty-seventh on-site inspection and inspection records should be objective, comprehensive, detailed, accurate and standardized, which can be used as the basis for on-site inspection or restoration of the original state of the site and meet the statutory evidence requirements.

Forty-eighth on-site inspection and inspection records include the following basic contents:

(1) Foreword: record number, time and content of receiving the case, site location, site protection, start and end time of the inspection, weather conditions, light of the inspection, organization and command personnel, site orientation and surrounding environment, etc. ;

(2) Text: traces related to the crime, names, parts, quantities, characteristics and distribution of articles, location, clothing, posture, injuries, blood distribution, shape and quantity of corpses;

(3) The last part: information of trace and material evidence extraction, information of seized articles, number of drawings and photos, and time of video recording and recording. Recorder, cartographer, photographer, cameraman and recorder, as well as the unit, position and signature of the personnel who perform on-site inspection and inspection, and the signature of the witness.

Article 49 After making the first record of on-site inquests and inspections for many times, supplementary records of inquests and inspections shall be made in turn.

Article 50 On-site inquests and inspectors shall, according to the on-site conditions, choose to make on-site plan schematic, on-site plan scale, on-site plan development, on-site stereo and on-site profile.

Article 51 The drawing of site maps shall meet the following basic requirements:

(a) indicate the name of the case, the time of occurrence and discovery, and the location of the case;

(2) fully reflect the location and scope of the site;

(three) accurately reflect the main objects related to criminal activities, and indicate the specific locations of traces, physical evidence, footprints, corpses, tools for committing crimes, etc. ;

(four) the text is concise and accurate;

(five) the layout is reasonable, the focus is prominent, the picture is clean and tidy, and the logo is standardized;

(six) indicate the measurement method, proportion, direction, legend, drawing unit, drawing date and drawing person.

Fifty-second on-site photography and video recording include orientation, general situation, key parts and details.

Fifty-third on-site photography and video recording shall meet the following basic requirements:

(a) the image is clear, the theme is prominent, the level is clear, and the color is true;

(two) clearly and accurately record the location of the scene, the surrounding environment and the original state, and record the location, shape, size and relationship of traces and physical evidence;

(three) detailed photography, video should be placed on the scale;

(4) On-site photo stickers with text descriptions;

(5) Conforming to relevant industry standards.

Article 54 On-site drawing, on-site photography, video recording, on-site inspection and inspection records shall be consistent with each other.

Fifty-fifth original materials of on-site inspection and inspection, such as on-site drawing, on-site photography, video recording, on-site inspection and inspection records, shall be properly preserved.

Chapter VII Extraction and Seizure of Site Trace Documents

Article 56 Traces and articles related to crimes found during on-site inquests and inspections shall be fixed and extracted.

Site traces and articles shall be extracted separately, packaged separately, numbered uniformly, and marked with the extraction place, location, date, quantity, name, method and extractor. For special samples, corresponding methods should be adopted for extraction and packaging to prevent damage or pollution.

Fifty-seventh extraction of documents above the secret level shall be approved by the person in charge of the public security organ at or above the county level, and shall be handled in accordance with the relevant provisions to prevent leakage.

Article 58 During the on-site inquest and inspection, all kinds of articles and documents that can prove the criminal suspect's guilt or innocence shall be seized; However, articles and documents irrelevant to this case shall not be seized.

If the holder of articles and documents related to the crime refuses to hand them over without justifiable reasons, the on-site inspector and inspector may forcibly detain them.

Article 59 If it is necessary to detain articles and documents during the on-site inquest or inspection, it shall be decided by the commander of the on-site inquest or inspection.

When seizing articles and documents, there shall be no fewer than two investigators, and they shall hold relevant legal documents or investigators' work permits. There should be a witness present.

Article 60 Explosives, drugs, guns, ammunition, obscene articles and other illegal prohibited articles found during on-site inquests and inspections shall be immediately seized, relevant evidence shall be fixed and handed over to relevant departments for handling.

Article 61 When seizing articles and documents, a list of the seized articles and documents shall be made on the spot, indicating the date and place of seizure, as well as the serial number, name, quantity, characteristics and source of the articles and documents, which shall be signed or sealed by the seizure agent, witnesses, and the holders of the articles and documents respectively.

If the seized articles and documents have no owner or it is difficult to find out the owner, it shall be indicated on the list of seized articles and documents.

List of seized articles and documents in triplicate, one for the holder of the articles and documents, one for the custodian of the seized articles and documents of the public security organ, and one for future reference.

Article 62 After taking photos or videos of articles and documents that should be detained but are inconvenient to take out, they may be handed over to the holder of the detained articles and documents for safekeeping or sealing, and the holder of the articles shall be clearly informed that they shall be properly kept and shall not be transferred, sold or damaged.

If the seized articles and documents are handed over to the holder for safekeeping or sealing, a list of the seized articles and documents shall be made, indicating the place of sealing and the person responsible for safekeeping, and photos or videos shall be taken, which shall be signed or sealed by the seizure agent, witnesses and the holder.

List of seized articles and certificates in duplicate, one for the holder of the articles and the other with photos or videos for future reference.

Articles that should be seized but are prone to corruption and other articles that are difficult to keep may be sold, auctioned or destroyed by the relevant departments with the approval of the person in charge of the public security organ at or above the county level according to the specific circumstances.

Article 63 The seized articles and documents that do not need to be preserved or are proved irrelevant to the case after investigation shall be returned to their original owners in time, and a list of returned articles and documents shall be filled out in duplicate, signed or sealed by the undertaker and the receiver, one for the original owner and one for future reference.

Article 64 The seized unowned articles and documents related to crimes shall be kept by the undertaking unit before the case is detected.

Article 65 If there is any doubt about the articles and documents seized by the public security organs, the holders of the articles and documents may inquire with the seizure unit; If you think that the seizure is improper, you can apply to the public security organ or the public security organ at a higher level for correction.

Article 66 When a public security organ at a higher level finds that the articles and documents seized by a public security organ at a lower level are inappropriate, it shall order the public security organ at a lower level to make corrections, and the public security organ at a lower level shall immediately implement them.

Article 67 The traces and articles extracted from the site and the articles and documents seized shall be filed and managed in accordance with relevant regulations, and stored in special places, with special personnel in charge, and the entry and exit registration system shall be strictly implemented.

Chapter VIII Site Visit

Article 68 The inquests and inspectors shall know and collect information and clues about the scene of a criminal case from the informant, the case discoverer, the victim and his relatives, other insiders or witnesses.

Article 69 The on-site inspection includes the following main contents:

(a) the time, place and detailed process of the discovery and occurrence of criminal cases, the protective measures taken after discovery, the situation seen at the scene, whether there are suspicious persons or other personnel at the scene, whether there are any abnormalities at the scene, and the loss of articles, etc. ;

(2) The number, sex, age, accent, height, posture, appearance, clothing, articles and characteristics, direction and route of the suspicious persons or perpetrators at the scene. ;

(3) Other information related to the scene of the criminal case and the victim.

Article 70 An on-site inspection shall meet the following basic requirements:

(1) Before questioning the interviewee, the on-site inquests and inspectors shall understand the relationship between the interviewee, the victim and the criminal suspect, determine the tasks and methods of the on-site visit, and ensure that the visit is legal, objective and accurate;

(2) When on-site inquests and inspectors visit the site, they shall show their certificates to the interviewee, and inform the interviewee that they must fulfill the obligation of truthful testimony and bear the legal responsibility of perjury or concealing criminal evidence;

(3) On-site inquests and inspectors shall ask the respondents individually, which may be conducted at the periphery of the site or at the unit or residence of the respondents. When necessary, the interviewee may be notified to the public security organ for questioning;

(4) On-site inquests and inspectors shall not disclose the case to the person being questioned, and shall not use threats, enticements and other means to ask the person being questioned;

(five) to visit minors, it shall notify their guardians to be present;

(6) The respondent shall make an inquiry record. The record of inquiry shall be signed by the inquirer and the respondent. With the consent of the interviewee, recording can be made.

Chapter 9 Search and Tracking Outside the Website

Article 71 When conducting an inquest or inspection of the site, the route around the site and the behavior person shall be searched and tracked.

Seventy-second on-site search and tracking tasks include:

(a) to search for the perpetrators hiding around the scene or not escaping;

(2) Looking for traces and articles related to crimes;

(3) searching the victim's body, human biological samples, clothes, etc.;

(four) looking for hidden and abandoned money and stolen goods. ;

(five) to find and eliminate hidden dangers that may endanger safety;

(6) Determine the escape direction and route of the perpetrator and track the perpetrator.

Seventy-third in the on-site search and tracking, traces and physical evidence related to crimes are found, which should be fixed and extracted.

Chapter 10 Field Experiment

Article 74 In order to confirm the formation process, conditions and reasons of a specific plot on the spot, on-site experiments may be conducted.

The field experiment shall be approved by the person in charge of the public security organ at or above the county level.

Article 75 The tasks of field trials include:

(a) Verify whether a certain sound can be heard or a certain situation can be seen under the site conditions;

(two) to verify whether an act can be completed within a certain period of time;

(three) to verify whether a certain behavior or function is consistent with the traces left under the field conditions and the state of the goods;

(four) to determine whether a certain tool can form a certain trace under certain conditions;

(five) to study the changes of traces and articles under the conditions of the site;

(six) to analyze and judge the occurrence process and reasons of a plot;

(seven) other circumstances that need further research, analysis and judgment through field experiments.

Article 76 Field experiments shall meet the following requirements:

(1) Field experiments are generally conducted in the place where the crime occurred, and dangerous experiments such as burning and explosion should be conducted in other places;

(two) the time and environmental conditions of the field experiment should be basically the same as those of the case;

(three) the tools and materials used in the field experiment should be consistent or basically consistent with the crime scene; When necessary, different types of tools or materials can be used for control experiments;

(four) conditional, should carry out more than two similar field experiments;

(five) the evaluation of the experimental results should take into account the influence of the objective environment and conditions on the experiment and the possible errors;

(6) Field experiments must abide by laws and regulations, respect national customs and habits, and prohibit all behaviors that may cause danger, immorality and insult.

Article 77 The process and results of field experiments shall be recorded, and the participants shall sign or seal the records.

Conduct on-site experiments, and take photos, videos and recordings.

Chapter 11 Field Analysis

Article 78 After the on-site inquest and inspection, the inquest and inspection personnel shall conduct on-site analysis.

Article 79 The contents of on-site analysis include:

(1) Infringement targets and losses;

(2) the place and place of the crime;

(three) the time to start the crime and the time required to commit the crime;

(four) the location, intrusion mode and walking route of the actor in and out of the scene;

(5) Number of criminals;

(six) the way, means and characteristics of the crime;

(7) Tools for committing crimes;

(eight) the process of the actor's activities at the scene;

(9) The personal characteristics and conditions of the actor;

(ten) whether there is any camouflage or other abnormal phenomenon;

(eleven) the motive and purpose of the crime;

(twelve) the nature of the case;

(thirteen) whether it is a series of crimes;

(fourteen) the direction and scope of the investigation;

(fifteen) whether it is necessary to further inspect and inspect the site;

(sixteen) on-site treatment opinions;

(seventeen) other problems that need to be analyzed and solved.

Article 80 After the on-site inquest and inspection is completed, a written record of the on-site inquest and inspection shall be filled in.

Chapter XII Site Treatment

Article 81 After the on-site inspection, the commander of the on-site inspection shall decide whether to keep the site.

The site that does not need to be kept shall be promptly notified to the relevant units and personnel for handling.

Need to protect the site shall promptly notify the relevant units and individuals, and designate a person to properly protect.

Article 82 Sites that need to be protected may be protected in whole or in part.

Article 83 If the cause of death is unknown, the identity is unknown or there are other circumstances that require re-examination, the corpse shall be preserved.

Eighty-fourth with the approval of the person in charge of the public security organ at or above the county level, the family members of the deceased shall be immediately notified to dispose of the bodies that do not need to be preserved. If it is impossible to notify or the family refuses to take it back after notification, it can be handled in accordance with relevant regulations with the approval of the person in charge of the public security organ at or above the county level.

With the approval of the person in charge of the public security organ at or above the county level, it shall immediately notify the family members of the deceased or the officials of the embassy or consulate of the country where it is unnecessary to continue to preserve the bodies of foreigners. If a foreigner's family member or an official of the embassy or consulate of the country to which he belongs refuses to take it back without notice or after notice, it may be handled in accordance with relevant regulations with the approval of the person in charge of the public security organ at or above the county level and after written notice to the foreign affairs department.

Chapter XIII On-site Review and Review

Article 85 In any of the following circumstances, the site shall be reinspected and rechecked:

(1) The case is serious and the scene is complicated;

(two) the investigation requires further information collection and evidence collection from the scene;

(three) the people's Procuratorate considers it necessary to review and review;

(four) the parties put forward different opinions, and the public security organ considers it necessary to reinspect and review;

(five) other need to reinspect and review.

Article 86 If a people's procuratorate requests a review, the public security organ shall notify the people's procuratorate to send personnel to participate in the review.

Chapter XIV Discipline of on-site inspectors

Article 87 When conducting on-site inquests and inspections, on-site inspectors and inspectors shall obey orders and instructions, follow standardized procedures and be polite.

After the on-site inspection, the on-site inspection personnel shall clean up the site, and all consumables must be taken away from the site and properly disposed of.

Article 88 On-site inquests and inspectors shall strictly keep secrets, and shall not disclose the on-site situation to irrelevant personnel, and shall not be interviewed by news media without authorization.

Chapter XV Supplementary Provisions

Eighty-ninth public security organs of other cases, incidents and accidents at the scene of the inquest, can refer to these rules.

Article 90 These Rules shall come into force on June 6+1October 6+1October 6, 2005. The Rules of the Ministry of Public Security on the Scene Investigation of Criminal Cases (1979, 1 July) were abolished at the same time.