Just watched an interesting storey on CBC National
Some people are questioning accuracy of police radar
The OPP and many other forces do an internal test within the unit before the start of their shift. HOWEVER the RCMP still use a tuning fork as well
Some agencies in the States as well as Canada say it is still essential to use the tuning fork to ensure the radar unit is up to par
I know years ago when my brother who is retired from the police started his shift he always had to use the tuning fork,,a radar expert in Canada says radar units may not all be in tune with each other without using the tuning fork