During Prohibition, the NYPD found themselves outgunned by the Mob and other bootleggers. Their answer was to outfit their patrolman with automatic shotguns and armored motorcycles. Indian produced 5 such motorcycles with bullet proof shielding to protect rider and passenger. Harley later came out with their own prototype, improving on the original Indian design.
1927 Indian Bandit Chaser
1927 Indian Bandit Chaser