20190507 - LIEGE, BELGIQUE: Les syndicats lors d’une manifestation des gardiens de prison de lantin à Liège, mardi 07 mai 2019. Les gardes de prison protestent contre les conditions de travail difficiles des gardiens de prison. | Unions pictured during a protest of prison guards in front of the Lantin prison in Liege, Tuesday 07 May 2019. The prison guards protest against the difficult working conditions of prison guards. Photo Philippe BOURGUET/bePress Photo Agency/bppa