Local, nonprofessional constables and militias were unable to deal with these movements effectively or enforce the new vagrancy laws.9 At first they requested the services of the new London Police, who had proven quite capable of putting down disturbances and strikes with minimal force. That force, however, always had the patina of central government intervention, which often further inflamed movements, so eventually towns created their own full-time professional police departments, based on the London model. The London model was imported into Boston in 1838 and spread through Northern cities
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