I am not sure where to post this but I ran across this while surfing around. It has to do with what bands of radar are used in New Jersey.
"The New Jersey State Police have solely used K55 as a speed detection device in the moving mode. Other stationary means of speed detection have been used, e.g., VASCAR and stop watch speed timing. Both methods did not employ radar."
"An informal survey of 27 State / Provincial Police agencies revealed the following:
(19) agencies use Ka band radar in the moving mode.
(2) agencies use K band radar in the moving mode.
(4) agencies use X band radar in the moving mode, (includes N.J.S.P.).
(2) agencies do not use radar in the moving mode - only stationary mode."
"Two leaders in the industry of moving radar, MPH and Stalker radar have sent representatives to Division Headquarters and installed new Ka band units into two marked troop cars being utilized solely for construction supplemental overtime."