en.wikipedia.org/wiki/Custodian_helmet

... current custodian helmet used by the Metropolitan Police Service in London. The custodian helmet is the modern name applied to the helmet worn by male police officers in England and Wales (and formerly in Scotland) and certain other places around the world. It is synonymous with the "bobby on the beat" image.

www.history.com/news/why-are-british-police-officers-called-bobbies

Dec 10, 2014 ... In creating London's Metropolitan Police (headquartered on a short ... they were referred to as “Peelers” or—more memorably—“Bobbies,” after ...

www.britannica.com/topic/bobby

Bobby: Bobby, slang term for a member of London's Metropolitan Police. The name is derived from that of Sir Robert Peel, who as home secretary established  ...

www.historic-uk.com/HistoryUK/HistoryofEngland/Sir-Robert-Peel

In Britain today all policemen are commonly referred to as 'Bobbies'! ... However, London was sadly lacking in any form of protective presence and crime ...

www.nbcnews.com/news/world/why-london-won-t-arm-all-police-despite-severe-terror-n737551

Sep 15, 2017 ... London's Metropolitan Police carried out some 3300 deployments involving firearms ... London's Unarmed Bobbies Manage to Keep the Peace.

projectbritain.com/london/crime.htm

Policemen became to be known as " bobbies" after Robert Peel who set up the first organised police service in London, 1829. Bobby is short for Robert.

johnbiggsoklahomawriter.com/the-london-bobbies

Jan 29, 2014 ... There are plenty of police procedural and spy novels that include exploits of the British police, but when you see them on the street, they fit ...

www.historyextra.com/period/modern/the-rise-of-the-great-british-bobby-a-brief-history-of-britains-police-service

May 9, 2018 ... The date for the beginning of the police in Britain is often given as 1829, when the Metropolitan Police first took to the streets of London.

www.wsj.com/articles/why-britains-bobbies-have-long-been-unarmed-1505727004

Sep 18, 2017 ... LONDON—The decision not to arm British police officers was made ... Police officers were nicknamed “bobbies” after him, and a conscious ...