1, the regularity of time, generally in the dead of night, students are often isolated, and criminals are outnumbered and easy to get; At the beginning of school, students usually bring a certain amount of cash, especially when freshmen enter school. Some freshmen and their parents also bring a lot of cash, which makes criminals salivate.

2. The location of the crime is hidden. Robbers usually choose places where the campus is remote or the terrain around the campus is complex, and there are few people and no street lights at night. Because criminals in these places are easy to hide, not easy to be found, and easy to escape after they succeed.

3. Selectivity of goals. The main targets of criminals' robbery are college students and couples who wear fashionable clothes, carry valuables, walk alone and fall in love in no man's land, especially women who walk alone.

4. For the same purpose of robbing property, some criminals often have the same taste, forming a gang in groups of three and five, and * * * trying to rob. Clear division of labor, some as bait to find the target of robbery, some as thugs, and some have made careful plans before robbery.

5. There are various means. Criminals usually take the following measures: seize the timid psychology of some students, threaten the victims with violence or verbal intimidation, and carry out compulsory robbery; Taking advantage of the innocence of some students, designing to trick college students into being cheated and carrying out deceptive robbery; Criminals use beatings, bundling and other acts to carry out violent robbery; Taking advantage of the hospitality of college students, pretending to be fellow villagers or friends to gain the trust of classmates, and then looking for opportunities to anesthetize classmates with drugs and carry out anesthesia robbery.