The Public Security Service or VST is a Lithuanian law enforcement agency under the Ministry of the Interior. It is primarily involved in restoring the public order and serving as the main riot police force equipped for riot control as well as critical infrastructure protection.

The Ministry of the Interior of the Republic of Lithuania is charged with the oversight of public safety, border protection, migration control, emergency response, public administration and governance, the civil service, and local and regional development initiatives. Its operations are authorized by the Constitution of the Republic of Lithuania, decrees issued by the President and Prime Minister, and laws passed by the Seimas (Parliament). The current head of the ministry is Agnė Bilotaitė.