Officers in Newquay say the resort is shedding its reputation as a haven for drunken revellers and stag parties as a result of the zero-tolerance approach to risqué fancy dress.
Some visitors to Newquay, including children aged 15, have been sent home as a result of anti-social behaviour, while older fun-seekers have had skimpy costumes – including mankinis – seized by police.
Superintendent Julie Whitmarsh said: “We have had this consistency of seizing inappropriate items of clothing, sending people home to get changed, and that has worked.
“Mankini is what we term ‘offensive clothing’, so we won’t accept people wearing them. They are just hideous.”