Services

The thl.fi website will be renewed on Tuesday, 5 May 2026.

Read more about the renewal

THL provides different kinds of services, for example, for working with patients and clients and for decision-making and research.

All services A-Z

Most used services at THL

Pollutant analysis

Studies human exposure to environmental pollutants

Offers support to the victims of domestic violence

Forensic medicine

Competent authority in charge of forensic medicine

Alcohol and drug testing

Detecting alcohol, illegal drugs and pharmaceuticals

For researchers

Use of THL's registers and documents for research

Our services and contacting THL communications

All services A-Z

On other websites

Nollalinja

A nationwide free-of-charge helpline for anyone who has experienced violence.