Home›Law Enforcement and Criminal Justice Officials›Era›By Decade›1920sBrowse By1920s1920sComments (0)Reader Challenges (0)1920sFilter Results3 entriesGroup TreeAllAmerican Police Chiefs and Police Reformers (1)Corrections Administrators and Directors (1)Police Leaders Outside the United States (1)Nationality (Geography)AllNetherlands (1)NationalityAllAmerican (1)British (1)Dutch (1)RoleAllPractitioner (1)Show ResultsBrowseCompareSelect all 3Gerard Veringa1920sJohn Alderson1920sPatrick V. Murphy1920sComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.