2. From the subject of crime, students' participation in robbery crime is prominent;

3. Criminal methods are cruel and new methods are prevalent;

4. Most robbery cases occurred in public places;

5. Judging from the relationship between the perpetrators, in the past, members of robbery gangs knew each other, were familiar with each other, were well organized, had a clear division of labor, and had a conspiracy beforehand;

6. Infringement objects with a certain range.

1. Robbery refers to the act of using violence, coercion or other means on the spot to force the owner, custodian, caretaker or holder of public or private property to hand over the property immediately or take it away immediately. The so-called violence means that the perpetrator strikes or forces the victim's body.

Second, beating, binding and confinement are more common. Hurt until you kill. Coercion here means that the perpetrator threatens the victim with immediate violence and exerts mental coercion to make the victim afraid to resist, forcing him to hand over his property on the spot or take it away. Other methods here refer to the methods that the perpetrator uses other than violence or coercion to make the victim unable to resist. Any natural person who has reached the age of 14 and has criminal responsibility can constitute the subject of robbery.

Three, robbery, refers to the purpose of illegal possession, take advantage of people unprepared, publicly seize a large amount of public or private property behavior. It is one of the crimes against property in the fifth chapter of our criminal law, and it is a form of crime between theft and robbery. Robbery of large amounts of public and private property is an important condition for robbery crime. In addition, the circumstances of robbery also have an impact on the determination of robbery. Therefore, robbing public or private property, which is relatively small and the circumstances are obviously minor, does not constitute a crime.