TY - BOOK ED - POLICING OFFICER'S PERCEPTIONS OF THE CHALLENGES INVOLVED IN INTERNET CHILD EXPLOITATION INVESTIGATION TI - Policing officer's perceptions of the challenges involved in Internet Child Exploitation investigation KW - PORNOGRAFIA INFANTIL KW - EXPLORAÇÃO DE MENORES KW - PESSOAL DE INVESTIGAÇÃO CRIMINAL KW - STRESS POLICIAL KW - PSICOLOGIA DO TRABALHO KW - AUSTRÁLIA ER -