 In 2004 he was convicted on two counts of crimes against humanity (extermination and inhumane acts) and one count of violations of the laws or customs of war (murder) and sentenced to 17 years in prison.Mrđa is believed to have been ordered to commit the crime by Simo Drljača, the chief of police of Prijedor, who was shot and killed by SFOR soldiers while resisting an attempt to arrest him in 1997.In May 2009, eight former members of the Public Safety Station in Prijedor and the Emergency Police Squad charged with crimes committed at Korićanske Stijene were brought to trial before the Court of Bosnia and Herzegovina.