The NDTC Laboratory provides a national drug analysis service to the HSE Addiction Services, General Practitioners, Hospitals (general, psychiatric and maternity), Juvenile Detention Centres, Voluntary Organisations and the Dublin Drug Court Probation Service. The customer database service is maintained by the customer services manager and new centres can become registered as customers by contacting the customer services manager (see Section 1.5). Users must be registered before sending samples to the laboratory for testing.