The force has called for mums and dads to ensure they know what their children are up to and that neighbours are properly respected.
Officials told Hillingdon is Here that there had been a move away from trick-or-treating to “outright yobbery”, in recent years and that this “won’t be tolerated”.
Historically, there has been a spike in crime and anti-social behaviour during this time but Hillingdon police assured residents there are “additional resources” in place to deal with it.
Inspector Rob Bryan told Hillingdon is Here: “To parents, I ask you to know what your kids are up to and ensure they know the boundaries of what is acceptable.
“Anyone, whatever age and whatever motivation, risks a criminal record if caught breaking the law. Don’t let it be one of your kids.”
He said: “Halloween and the weeks around it unfortunately always see a rise in antisocial behaviour.
“Our Safer Neighbourhood Teams, supported by additional resources will be out in the community dealing with those people who don’t know the difference between having fun and causing disorder.
“We will be focusing on those cycling recklessly, those committing crimes on mopeds and the illegal use of fireworks.”
Children have been warned that if they don’t want mum or dad with them while out trick or treating, then they must be too old and shouldn't be doing it.
Happy Halloween. Have fun, stay safe and remember to be considerate of other people ??? pic.twitter.com/gclc54s9IW— Harefield Police (@MPSHarefield) 31 October 2017
Wishing you all a happy & safe Halloween, we’ll be out keeping you safe tonight! ? ? pic.twitter.com/yljENgSWx9— Uxbridge Sth P?lice (@MPSUxbridge) 31 October 2017
Hillingdon's team has been taking part in the London-wide operation by the Metropolitan Police called Operation Autumn Nights alongside the latest phase of Operation Sceptre, involving a variety of tactics including “intense weapon sweeps and intelligence-led policing to target repeat knife crime offenders; as well as an increase in visible police officers”.
The Met said in 2016 there were on average 5,111 calls a week to police across London about anti-social behaviour incidents around this time of year.
Between Halloween and Bonfire Night this significantly increased - in the week ending 30 October there were around 7,050 reported ASB incidents, a 38 percent increase on the weekly average.
On the week ending 6 November there were around 8,190 calls, representing a 60 percent increase on the weekly average.
Superintendent Tania Coulson, leading the Autumn Nights operation, said: "We are here to ensure young people enjoy the festivities but remain safe in doing so.
"Our operations are not aimed at ruining the fun of this time of year but are in place to ensure those who are intent on committing crime and anti-social behaviour are dealt with accordingly."
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