Police say drink driving won't be tolerated.
The constabulary took to social media this week to say they arrested a local resident caught driving over the limit earlier this week.
The force will be at the Sea Terminal with breathalysers throughout TT to check those arriving on Island are fit to drive.
Officers say they'll go out of their way to seek out and arrest those who break the law.
What's being done to tackle crash blackspots?
New TT schedule will be reviewed on yearly basis
No successful driving theory test appeals in past 10 years
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