sentences:  Conference On Crack and Cocaine is the UK's leading charity supporting drug professionals and organisations with the issues relating to stimulant drugs such as crack, cocaine, amphetamine, methamphetamine and MDMA (ecstasy).COCA provides specialist training for professionals who come into contact with people using crack and cocaine and other stimulants.The training ranges from basic awareness of the issues surrounding problematic use, to developing competencies in group and key working sessions.