Investigation Techniques of A Homicide The O. J. Simpson double murder trial is perhaps the most publicized case this decade. However, before the police can arrest Simpson and prosecute him, they must investigate. The investigation techniques LAPD used are used all over the world. CRIME SCENE Patrol officers received a disturbance call at Nicole Simpson's residence. They arrived on scene and discovered two bodies. They looked around to see if the suspect is anywhere around then they checked to determine the two subjects were dead. The officers immediately contacted the detectives on duty and supervisors and then secured the area t