But officers issue advice on how to stay safe
Police say they've not had any reports of any drinks being spiked so far this TT.
It's after a social media post urged people to be careful about the potential risks.
Officers say it's not a regular occurrence on the Isle of Man, during the racing fortnight or not.
But Inspector Paul Kemp says it's never a bad thing to be careful:
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Clerk of the Course confirms change to proceedings
Crash which closed the Mountain Road ahead of racing 'not too serious'
Police give update after incident at Brandywell delays TT schedule
Fine for pair who brought drugs to Island in campervan toilet
"I'm sure this is a wonderful TT for you all but rules are rules"
TT campers in 'high spirits' despite rain affecting race week
'Costa del Ballaugh' one week, mud the next