Undercover police have clocked a number of motorists flouting speed limit restrictions this week - some of them travelling at over double the legal limit.
Covert officers, in cars and on bikes, are being used during the TT fortnight to try and crackdown on those who are putting others at risk.
Superintendent Kevin Willson says too many people are taking too many chances:
Officers have also reported motorbikes are tailgaiting, and trying to overtake in unsuitable places, and motorists aren't being observant enough and are "wandering" across the road.
Superintendent Willson says people need to wise up:
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