OSBI(Oklahoma State Bureau of Investigation: OKLAHOMA STATE BUREAU OF INVESTIGATION (OSBI) – In the early 1920's, gangs of outlaws roamed the state terrorizing the citizens of many Oklahoma towns.cityofgroveok.govSlawjanka)
major crime unit(Vancouver Island's major crime unit is still trying to locate the driver of a light-coloured sedan who picked up two hitchhikers near the scene of a triple homicide in rural Qualicum Beach on the morning of Nov. 1. Later that day, three bodies were found at the end of Melrose Forest Service Road near Whiskey Creek. Two of the bodies were found in a charred trailer. The third was nearby. One man, found in a second trailer, was airlifted to hospital in critical condition with gunshot wounds. The remains of four dogs were also recovered.castanet.netART Vancouver)
the homicide squad(CNN, 2020: The homicide squad continues to investigate, police are looking for witnesses who may have dashcam or cell phone footage of the attack.Alex_Odeychuk)
cursory police investigation(There had to be another shooter involved, Strongman insists. He suggests that a CIA plant who worked at the Dakota building was the real killer. What increases his suspicion is the cursory nature of the police investigation after Chapman’s arrest.dailymail.co.ukART Vancouver)
internal affairs investigation(CNN, 2020: Philadelphia Police Commissioner said that while he was not privy to all of the information that led to the district attorney's decision to charge a police inspector, an internal affairs investigation on the matter had already been initiated and would continue regardless of the district attorney's prosecution.Alex_Odeychuk)