1970’s, Motor Officer,

If you look carefully, you’ll notice the rear wheel friction siren.  It was activated by a heal pedal behind the left footboard that caused the siren shaft to rub on the rear wheel.  A real rush when you put siren drag on the left side of the rear tire at about 80+ mph!  Didn’t work worth the darn in the rain or if you got stopped at an intersection.  We often ran on emergency calls with a whistle in our mouth in case you got stopped and needed to cross traffic.

Dave Stopper

Motor Officer (Retired)

Fairfax County, VA Police Department