Héctor Agustín Gálvez López is the Coordinator of the Addiction centre in the Preventive Penitentiary Varonil SUR. He began group therapy within the addiction treatment of the Preventive Prison for Southern Men approximately nine years ago and has contributed to a higher percentage of recovery in the prison population. Thanks to his initiative, group therapy has now been extended to other centres and Hector trains other professionals equally committed to the dissemination the values that make his rehabilitation practices effective.