Co-morbidity or dual diagnosis is established by the World Health Organization (WHO) as the 'co-occurrence in the same individual of a dysfunction of psychoactive substance use and other psychiatric disorder' (WHO, 1995). There is a growing feeling on the part of psychologists and other professionals working in the treatment of addictive behaviors, that there is a high occurrence of not characterized psychopathological problems with implications for the treatment of drug addicts. Resulting from this observation and the need felt in clinical practice, the Regional Delegation of the Alentejo...