David Lisak argues that prevention efforts aimed at persuading men not to rape are unlikely to work, and universities should instead focus on helping non-rapists to identify rapists and intervene in high-risk situations to stop them. Lisak also argues that whenever a nonstranger sexual assault is reported, it represents a window of opportunity for law enforcement to comprehensively investigate the alleged offender, rather than "putting blinders on looking solely on the alleged 45-minute interaction between these two people". Lisak believes rape victims should be treated with respect, and that every report of an alleged rape should trigger two simultaneous investigations: one into the incident itself, and a second into the alleged perpetrator to determine whether they are a serial offender.