Tarlok Singh currently works as Lead Nurse for the Clinical and Psychosocial Substance Misuse Team at Eastwood Park Prison. Tarlok has been working with substance misuse since 1994 when he embarked upon his career with a low threshold methadone programme with severely chaotic client in Kings Cross London. Since then, he has worked with substance misusers in various clinical settings including primary health care for the homeless; outpatients; child and adolescent psychiatry; and inpatient detoxification services. Tarlok is a Registered Psychiatric Nurse, PG Dip Gestalt Psychotherapy; and PG Dip Drug & Alcohol Studies.