Based on the private archive material, published archival sources, periodical and recent scientific literature the author in this work analyzes the preparation and the course of the military and constabulary operation Bljesak, which liberated the rest of the west Slavonian territory under Serbian occupation. Particular emphasis is placed on the role of the Special police in this operation. After the Greater Serbian aggression on the Republic of Croatia, nearly a third of Croatian territory was occupied, including the west Slavonian territory. Until the operation in May 1995, most of the territory was liberated but on a part of occupied territory was still an occupied main road which ocupators used to interfere with the traffic and the fullness of the Croatian territory. With the diplomatic solutions exhausted, and the occupied territory became the focus of the riot, conflict and suffering, the Croatian authorities decided to liberate the occupied post by the operation Bljesak in whose preparation, course and later field raid, the Special police actively participates and shows the willingness to fulfill the given tasks. The term Special police is used in the work regarding the battalions of the Special Police Unit (SJP) of the MUP of Croatia.