As long as the privacy of others is not violated, the recording without my consent is legal and valid. The evidence shall be presented in court and cross-examined by the parties. Evidence involving state secrets, commercial secrets and personal privacy shall be kept confidential. If it needs to be presented in court, it may not be presented publicly. The recording collection method should be legal, and the recording collection process should be carried out in a reasonable place.

As long as there are no illegal means and forms and no violation of the state, the interests of the public or the legitimate rights and interests of others should be legal and effective. A sound recording obtained by legal means is not illegal as long as it does not infringe upon the legitimate rights and interests of others and does not violate the prohibitive provisions of the law. The way to obtain the sound recording should be legal. The process of recording and collecting is carried out in a reasonable place, and eavesdropping, eavesdropping on others' privacy and invasion of others' privacy cannot be used. For example, you can't eavesdrop on other people's home equipment. If it is used to eavesdrop on the recording, the content of the recording should be true and completely coherent, and no one can edit it. For example, when recording, deliberately guide the other party to make some answers, and then obtain a favorable evidence through editing. This evidence will also be considered invalid. When recording, the other party's speech is a true expression of meaning, completely free from coercion and threats from others. For example, it is also invalid to obtain recorded evidence by restricting personal freedom, kidnapping, threats and other means. The sound quality of the recording should be clear, and the content of the recording should completely tell the facts to be proved in the case. The recorded materials shall not be deleted, and the original recorded materials shall be kept.