Chris retired from General Practice after 30 years in practice, where she special interests in working with people who use drugs and/or alcohol, HIV and hepatitis and sexual health. Chris helped form the Substance Misuse Management in General Practice, a primary care network to support and train practitioners to care for people who use drugs and / or alcohol, and was its Clinical Director until 2011. Chris also set up International Doctors for Healthier Drug Policies (IDHDP), which represents doctors demanding an end to punitive drug policies.