cocaine, or opiates or if they had taken any of these substances intravenously in the last 6 months, 2) current danger to self or others, 3) lack of prospects for residential stability, or inability to verify a place of residence or a person who could help locate them, 4) symptoms of acute psychosis or severe organic impairment, and 5) plans involving an alcohol-treatment program independent of those offered by Project MATCH.