Yes, the qpp or whatever they are called, will have devices which can determine another vechicles speed while in motion. That's part of where the calibration of a device comes into play.
HTA = Highway Traffic Act. Quebec will have it's own variant.
Points is a paralegal specializing in traffic violations.
And here's a a cpl of FYI's.
http://www.fighting-speeding-tickets.net/how-to-beat-a-speeding-ticket.html (mostly marketing)
http://www.canlii.org/qc/laws/sta/c-24.2/20040901/whole.html (actual quebec law)
Have fun!
