RT Article T1 Using crowdsourcing for a safer society: When the crowd rules JF European journal of criminology VO 19 IS 4 SP 692 OP 711 A1 Estellés-Arolas, Enrique LA English YR 2022 UL https://krimdok.uni-tuebingen.de/Record/1839927518 AB Neighbours sharing information about robberies in their district through social networking platforms, citizens and volunteers posting about the irregularities of political elections on the Internet, and internauts trying to identify a suspect of a crime: in all these situations, people who share different degrees of relationship collaborate through the Internet and other technologies to try to help with or solve an offence. The crowd, which is sometimes seen as a threat, in these cases becomes an invaluable resource that can complement law enforcement through collective intelligence. Owing to the increasing growth of such initiatives, this article conducts a systematic review of the literature to identify the elements that characterize them and to find the conditions that make them work successfully. K1 Collective intelligence K1 citizen K1 Crime K1 crowdsourcing K1 offence K1 Participation DO 10.1177/1477370820916439