1940- 1951- administrationof anecdotes antinuclearmovement augmentedreality austria biography bob britishcolumbia cameron canada casestudies civilrights cole communitypolicing criminal criminalinvestigation criminaljustice criminalprovisions dataprotection eavesdropping england equipmentandsupplies evidence firearms gary greatbritain harry lawandlegislation lawenforcement leuci london newyork newyork(state) police police-communityrelations policemisconduct policeregulations policetraining privacy rifles rightof safetymeasures socialmedia socialmovements specialweaponsandtacticsunits standards surveillanceoperations sweden technologicalinnovations trafficpolice trafficviolations undercoveroperations unitedstates useincrimeprevention vancouver wiretapping