In the Polish Army, a Porucznik is included in the corps of junior officers.
A Polish officer with the rank of lieutenant will wear three stars on their shoulder straps.
They also commonly serve as deputy company and battery commanders.
The rank of lieutenant is also present in Poland's Border Guard, Prison Service, Government Protection Bureau, Foreign Intelligence Agency, Military Intelligence Service, Military Counterintelligence Service, and Internal Security Agency.
The equivalent of this rank in the police is a commissioner, in the State Fire Service - a captain, and in the Customs Service - a customs commissioner.
"Porucznik" is derived from the verb "poruczać" that occurs in Old Polish, that is, "to put into one's hands with confidence, to entrust", which in turn is derived from the word "hand".
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