It is considered a group criminal spin because the most gang members perform this act only during a group interaction, "letting themselves" deviate from their everyday norms.
On these occasions, the group interaction provides an "I can" component of a spin: Although each member does not usually sense an inner ability and permission to act in the criminal direction, i.e., to gang rape, the perceived power of the group supplies this sense and allows the act.
Another study found that group sexual assaults were more violent and had greater resistance from the victim than individual sexual assaults and that victims of group sexual assaults were more likely to seek crisis and police services, to contemplate suicide and seek psychotherapy than those involved in individual assaults.
The two groups were about the same in the amount of drug use and drinking during the assault.
A 2013 study based on 25 year crime data from US and Europe, between 10% to 20% of all rapes were gang rapes.
Less than one in three gang rapes are reported, while less than 1 in 20 attempted but failed gang rapes are reported.
Gang rape is sometimes stereotyped in media as a crime of poor, minorities, or culture; however, gang rape incidence rates are high in wealthy college campuses, among non-minorities and every culture.
over 70% of the victims were gang raped by rapists of same race and religion.
Within this process, each group member contributes a certain role towards the development of the criminal spin—even the passive members, who are silent participants, support the spin by their very presence.About 36% of the perpetrators had raped more than one woman, 50% of those who had committed gang rape had raped both partner as single perpetrator as well as non-partner during a gang rape, while 32% had gang raped a woman and raped a man.The study also found that 90% of the rapists were in the 15–29 age group at the time they perpetrated the first rape.Most cases were not reported to law enforcement, and just 23% of single or multiple perpetrator rapes that were reported by the victims ended in prison sentence.Gang rapes during civil wars and ethnic riots take added dimension of becoming a means of revenge, sending a message to the victims' community, inducing fear in the opponent, and creating a sense of solidarity among the soldiers or militants or the violent group.