Crime in London

Figures on crime in London are based primarily on two sets of statistics: the Metropolitan Police (MPS) reported statistics, and the Mayor's Office for Policing & Crime (MOPAC) victim surveys. The Crime Survey for England and Wales (CSEW) contains London data, but its sample size is usually insufficient for precise estimates of London numbers.

Following a history of significant changes to UK national police reporting standards and systems, accurate trend data for many police-reported crimes in London has not been available until about 2002. Rises in violent crime from about 2012 onwards have, in common with the rest of the United Kingdom, been partially due to the effects of these improved reporting practices over time.

Greater London is generally served by three police forces; the MPS which is responsible for policing the vast majority of the capital, the City of London Police which is responsible for The Square Mile of the City of London and the British Transport Police, which polices the national rail network and the London Underground. A fourth police force in London, the Ministry of Defence Police, do not generally become involved with policing the general public. London also has a number of small constabularies for policing parks. Within the Home Office crime statistics publications, Greater London is referred to as the London Region.