Northbound travel on Naper Blvd observed an unmarked Dodge Charger Wagon using laser technology at Jane Ave, just south of the Apartment Complex. The Dodge appears to be stopped at the STOP sign waiting to merge into traffic. The chase car, a police patrol unit waiting patiently behind the Dodge, is immediately dispatched to ticket the unsuspecting vehicle traveling in excess of the posted speed. Speed limit is 35 MPH. Observed March 15, 845 am. On my southbound return trip at 920 am, observed patrol car with lights blaring, pulled over behind a lady in a Volvo. Dodge still parked, hunting.