They're called "Bobbies," a reference to the organizer of the London Metropolitan Police Sir Robert Peel.
'Peelers' or 'Bobbies' - a nickname playing off the name of Sir Robert Peele the organizer of the London Metropolitan Police Force.
The metropolitan police has approximately 48,000 employees, 36,000 of which are serving police officers of various ranks
The Metropolitan Police Service in London has 33,000 full time police, 3000 Special Constables (part-time police), 4000 Police Community Support Officers and 14,000 civilian staff.
There are 32,380 full-time officers in the Metropolitan Police. There are also an extra 4,459 special constables who work part-time. That is a total of 36,836 officers.
"Bobbies" is used as a colloquial term for police officers around the UK, not just London where it originated.
The Metropolitan Police in its present form was established in 1829.
metropolitan police
No London. It is where London Metropolitan Police have their headquarters
Scotland Yard was the first headquarters of London's Metropolitan Police Force.
Scotland Yard
Metropolitan Police and City of London Police. There is also Transport Police looking after the rail network.
Scotland Yard in London, England is considered one of the largest police stations in Europe. It serves as the headquarters for the Metropolitan Police Service, which is responsible for policing Greater London.