The years 2015–2016 saw an unprece­dent­ed increase in the num­bers of peo­ple trav­el­ling by sea and over­land along migra­tion routes to the Euro­pean Union: almost one and a half mil­lion peo­ple arrived and applied for asy­lum in EU coun­tries. This sit­u­a­tion required front­line respon­ders to be able to quick­ly iden­ti­fy and refer poten­tial vic­tims of traf­fick­ing in human beings among refugees, asy­lum appli­cants and migrants in an irreg­u­lar situation.