This paper compares the organizational command structures of two major urban police departments: the Metropolitan Police Service of London and the Los Angeles Police Department (LAPD). Beginning with a brief history of each force, the paper examines their respective rank hierarchies, territorial coverage, and specialized units. It also explores key differences — including the LAPD's paramilitary character, officers' right to carry firearms, and heavier reliance on patrol cars — alongside shared challenges such as the drug trade, terrorism, and policing diverse populations. The Christopher Commission and RAND Corporation recommendations for LAPD reform are noted as significant milestones in modern police professionalization.
The Metropolitan Police Service in London was established by Robert Peel in 1829 and remains the largest police force in the United Kingdom, with approximately 31,000 officers. The department has its headquarters at New Scotland Yard. Since 2000, the department has covered the 32 boroughs of London, excluding the City of London, which has its own police force. Prior to that, the reach of the Metropolitan Police was larger.
The nature of the territory and the command structure can be compared to that of a major U.S. city like Los Angeles. The Los Angeles Police Department (LAPD) was professionalized through reforms instituted in the late 1940s and consists of approximately 9,200 officers — a far smaller number than London's force, and smaller on a per capita basis as well.
The Metropolitan Police force is divided into ten departments or directorates, each headed by an Assistant Commissioner. These ten commissioners join the Commissioner of the Metropolitan Police and the Deputy Commissioner to form the Management Board. The day-to-day policing of the various boroughs is the responsibility of 33 Borough Operational Command Units (BOCUs). The Metropolitan Police also maintains a number of specialized units focused on reducing serious and specialist crime.
The rank structure for the department is as follows:
The prefix "detective" applies to officers who have been assigned to investigative work after completing the appropriate period of selection and training. Detective ranks parallel uniformed ranks and range from Detective Constable to Detective Chief Superintendent (Structure of Policing in London, 2006).
The basic command structure for officers of the Los Angeles Police Department is as follows:
"Firearms, patrol methods, and reform history"
"Common policing challenges and model status"
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