D. Evidence for family support interventions and integrated service provision (Families model)
There is highly processed and review-level evidence that involving families in recovery care plans for affected individuals and providing support for family members themselves is beneficial to improve outcomes for both parties
For the person in recovery and to meet needs of (adult) family member
NICE Clinical Guidance 51  general considerations include the following:
Where the needs of families and carers of people who misuse drugs have been identified, staff should:
There is review level evidence that community reinforcement and family training (CRAFT) is effective in engaging treatment resistant substance-abusing individuals. Included studies were small scale but assessed as good quality with high programme fidelity. Evidence also suggests that irrespective of treatment engagement by the affected individual these programmes are beneficial to families and significant others. 
In their Scottish-Government-commissioned review for the Scottish Child Care and Protection Network, Mitchell and Burgess (2009) identify evidence from one US- based study (Gregoire and Schulz 2001) examining drug treatment outcomes that found support from significant others emerged as having a strong, positive relationship with assessment completion and treatment outcomes, and custody outcomes. It is worth noting that this support was more commonly received by males as women in the study sample were more likely to have significant relationships with men who were themselves misusing substances.
There is review-level evidence from UK-based qualitative studies to suggest that where drugs (and/or alcohol) use exists, targeted family support interventions have a positive influence on the lives of parents and children. These include remaining together as a family despite previous child protection concerns at referral, although evidence of effect on child welfare outcomes is not known. Projects were characterised as child-focused with a strength-based approach to assist families (individuals and as a whole) to identify their issues and how to address them. Interventions were community-based with substantial contact time.
There is review-level evidence that integrated substance treatment and family support services may be successful in assisting women to reduce their drug and alcohol use, and to bring about changes that support their parenting and family life. Both programme completion and length of stay within treatment appear to be key factors in influencing positive outcomes for women. 
There is review evidence to suggest that interventions based on the stress-strain- coping-support theoretical model: the 5-Step Intervention is effective in reducing stress symptoms and improving family member coping responses. 
Scottish policy and practice note
Quality Principles: Standard Expectations of Care and Support in Alcohol and Drug Services(2014) [ www.scotland.gov.uk/Publications/2014/08/1726/downloads] The underlying philosophy of a ROSC is that treatment and aftercare are integrated, and priority is given within the system to sustaining individuals in their recovery journey. The distinguishing features of a ROSC include being person-centred, inclusive of family and significant others, as well as providing individualised and comprehensive services across the lifespan with systems anchored in the community. At its core it has strength-based assessments and interventions that are responsive to personal belief systems, a commitment to peer recovery support services, is inclusive of the voices and experiences of people and their families in recovery and provides integrated services. It also provides for system-wide education and training, ongoing monitoring and outreach, is outcomes driven and evidence based.
The Adult Support and Protection (Scotland) Act 2007 (www.scotland.gov.uk/Topics/Health/Support-Social-Care/Adult-Support-Protection) seeks to protect and benefit adults at risk of being harmed. The Act requires councils and a range of public bodies to work together to support and protect adults who are unable to safeguard themselves, their property and their rights.
It provides a range of measures which they can use. Public bodies are required to work together to take steps to decide whether someone is an adult at risk of harm, balancing the need to intervene with an adult's right to live as independently as possible.