Doug LePard, Deputy Chief Constable, Vancouver Police Department, Vancouver, British Columbia, Canada Interviewed by Curt Griffiths Horacio Alberto Gimenez, City Chief of the Metropolitan Police of Buenos Aires, ArgentinaInterviewed by Sebastian Sal Jon Murphy, Chief Constable of Merseyside Police, UKInterviewed by David Lowe Alberto Melis, Douglas Police Department, Arizona, USAInterviewed by Scott W. Phillips Dominic Stalteri, Assistant Commissioner of Police in Western Australia Interviewed by Ann-Claire Larsen Peter Marshall, Commissioner, New Zealand Police Interviewed by Garth den Heyer Jean-Michel Blais, Halifax Police Force, CanadaInterviewed by Steve Perrott Ellison Greenslade, Commissioner, The Royal Bahamas Police ForceInterviewed by Perry Stanislas Joe Arpaio, Sheriff, Arizona, USAInterviewed by Diana Bruns Per Svartz, Commissioner, Blekinge, SwedenInterviewed by David Baker Fábio Manhães Xavier, Colonel of the Military Police de Minas Gerais (PMMG), Brazil Interviewed by Ludmila Mendonça Lopes Ribeiro, Rosânia Rodrigues Sousa, and Alexandre Magno Alves Diniz J. Thomas Manger, Chief of Police, Montgomery County, Maryland, USAInterviewed by Michael M. Berlin and Marcellus Boles Ng Joo Hee, Commissioner of Police, Singapore Interviewed by Susan Sim