Independent TD Michael Healy-Rae has said improper speed detection methods demonise motorists.
It comes as a review into the Road Safety Authority (RSA) reportedly suggests fees on driving licences should be raised and penalties increased for dangerous users.
The report also suggests transferring some functions from the authority, but Healy-Rae is critical of the current system of speed detection.
"All of a sudden, parked, hidden, very nice and tidy along a row of parked cars, you have a speed van," he said.
"That's not proper speed detection. That's catching somebody who's a couple of miserable miles, or kilometres, over the limit and all of a sudden they get three penalty points.
"All motorists, instead of being encouraged, what they are is they are actually doing is demonising and terrorising them."
