States of Guernsey Police Service States of Guernsey Police Service The States of Guernsey Police Service, known generally as the Guernsey Police, is the Police service for the Bailiwick of Guernsey, a jurisdictional sub-group of Crown Dependencies within the Channel Islands. The Service's enforcement jurisdiction extends across the entire Bailiwick and encompasses the Islands of Guernsey, Alderney, Herm, and Sark. In common with many communities, a historical development of parish constables formed the system of law enforcement for many centuries. In the nineteenth century the people of Guernsey complained that this system was inadequate for a growing population, and a professional police force was demanded.
Maritime history of the Channel Islands 1790, Guernsey merchants shipped low quality brandy to Madeira, where it was added to their wine to fortify it. Madeira wine becoming famous. Both Islands established Chambers of Commerce as the merchant families expanded and grew in wealth. Tupper, Priaulx, Le Marchant and De Jersey from Guernsey and Ste Croix, Robin, Janvrin and Hemery from Jersey, often intermarrying to avoid rivalry. Part ownership of ships show there were 1,238 people were owners of shares in the 19th Century including 280 mariners and 97 in ship related trades, but also included 55 farmers, 34 widows, 29 spinsters and 25 gentlemen. It