Jerzy SarneckiProfessor Jerzy Sarnecki from Stockholm University's Department of Criminology is a regular commentator in the Swedish media on the subject of crime.Sarnecki, whose position is officially entitled Chair of General Criminology, retains his long-standing interest in the question of crime amongst young people in Sweden. He is currently leading a longitudinal research project entitled: “The Stockholm Life Course Project: Life-Courses and Crime In the Swedish Welfare State Through Half a Century”. This research follows up on two previous studies of men who participated in the Clientele Study of 1956, and Jonssons and Kälvestens 322