Police say they will be tackling anti social behaviour today as the Island marks Hop-tu-Naa.
The spooky festival sees many people taking to the streets to 'Trick of Treat' in return for money and sweets.
It's a pastime traditionally carried out by children, but police say they will have officers on patrol watching out for anyone creating trouble.
Anyone who is caught causing problems has been warned they will be dealt with robustly.
Inspector Derek Flint says they want people to have fun, but not at the expense of others:
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