The police may request assistance in performing their duties from the Defence Forces or other agencies – for example when special equipment or competency is required. The operation itself remains under the command of the police. Military units (brigades) usually keep a company under readiness for assistance at all times; the turn rotates among companies and requires them to forego regular leave. In practice, the Defence Forces have assisted in disposal of explosives, provided Pasi armored vehicles for operations against heavily armed suspects (e.g. the Kauhajoki shooting), and conscript manpower for searching missing persons in terrain and in supporting the 2015 refugee crisis. Finnish military police and investigative command would assume a more extensive set of tasks in wartime.