in usa, u can use a radar detector + laser jammer for driving, while in singapore cannot.. comes in handy while u are on the move.. tends to speed when too long on the road ..
If u get pull over for the wrong reason some cops can still ticket u.
Their reason u must have speed else why do u need this device if u always drive below speed limit
If cop is park not using radar but u speed and is faster than other cars they can still pull u over. It's not fool proof. I just don't use it and use cruise control
Lastly, if you are one who tends to speed when too long on the road, I shall introduce to you this equipment called cruise control. Allows you to rest your leg and keep you from speeding. I've yet to see a car in the US without one (note that for rental cars, they are usually quite new).
Cars above compact or Econ grade often have cruise control. Econ or compact most of the time they don't come equip with cruise control
Issue is cruise control is boring, drivers tend to get sleepy need other means to stay awake.
Some states say Washington 60 means 60 not 65, same as Ohio.
Else where it's often safer to do 5 to 10 above limit.
Depending on cars, most odo reports a little below the real number..
American generally btw 1-2miles , jap can be as much as 3-5
Btw radar device not thousands of dollars usually ~usd$500-600 for the super good ones.