I wasn't speaking of inside the city limits of Detroit, which is a total dump only surpassed by CLEVELAND as a TURD PIT.
This is I-75 20+ miles north of Detroit and 96/696 10 miles North of Detroit as well.
Low crime, high $$ areas.

True radar jammers are highly illegal.
Real ones are only available in kit form.
You can build jammers that amplify the power signal so high they will actually overload and destroy radar guns into a smoking heap of circuit boards.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !