The TC approach is generally delivered in a residential setting, primarily to ensure a safe, secure environment. The residential setting, removed from the wider community, provides the means to keep TCs drug-free, enabling residents to address the issues underlying drug use without the distractions of drug use and associated problems. The focus on social, psychological and behavioural dimensions means that TCs are frequently addressing highly emotive aspects of life. The secure and supportive nature of residential TCs is important for the emotional dimensions to be managed. When the TC approach is delivered in a non-residential setting, strategies to ensure the safety and security of the environment include the involvement of family (with access to appropriate family support sometimes a requirement of non-residential TC treatment) and extended day-care arrangements.