The Homicide and Major Crime Command (SCO 1) is an Operational Command Unit of the Metropolitan Police responsible for the investigation of homicide and other serious crimes in London. Most of their work was carried out by major investigation teams (MITs), of which there were 24. It was formerly known as the Homicide and Serious Crime Command (SCD 1).
As of May 2018[update], there were 722 personnel in SCO 1, including 540 police officers and 182 civilian staff.[1]