Outraged families in Corn Gastons in Malmesbury have slammed the behaviour of youths who caused havoc after a party organised by Brownie leader Yvonne Hawkins.

The house party celebrating Ms Hawkins’ daughter completing her A-Levels attracted over 100 revellers who spilled out onto the streets kicking fences, urinating in gardens, smashing glass bottles and waking up neighbours.

People were also angry at the response of police who arrived an hour after the first call was made.

Mark Cox said he woke up to see someone in his garden.

He said: “Me and my partner got up about midnight and there was a man in our garden peeing all over the hedge.

“There was another group of three girls peeing next to my neighbours van. It was disgusting.

“I had beer bottles shoved into my hedge and there was broken glass up the street.

“There was about 120 people shouting and screaming.”

Ms Hawkins, who is Brown Owl for the Malmesbury 1st Brownies, admitted there had been a big party.

She said: “It was my daughter’s school leaving party.

“There were lots of people invited, my daughter is a very popular girl.

“But there wasn’t 100 people; that is an exaggeration.

“I turned the music off at 12 and told people to leave.

“I stood outside and made sure they left the front of the house.

“I can’t control what they did once they left here but I stood outside and didn’t see anyone going into people’s gardens.

“There were three lads who were kicking a neighbours fence but we told them to stop doing it.

“No one has come and made a complaint about it to me.”

Another resident who didn’t want to be named said: “It was absolute chaos, I’ve never seen anything like it.

“There was at least 100 people in the road.

“They were full of drink, kicking the bus shelter, peeing everywhere and keeping most of the street awake.

“It was very intimidating.

“That sort of thing is completely irresponsible for someone who leads a group of Brownies.”

Another said: “This isn’t the first time it’s happened. There was another one in April.

Alarmed residents afraid to leave their homes phoned the police but were frustrated officers only arrived an hour later after multiple calls.

One resident, who had a bottle smashed under his car, said: “I wasn’t the only person to call the police.

“I called them at 12.20 but they only showed up at about 1.15 and by then most of them had moved on.

“I rang them back and said it was about to kick off and only then they said they would make it a priority.

“You have a huge crowd of drunken youths roaming around the street and the police don’t seem to want to deal with it.

“We might as well employ a private security firm.”

Chief Inspector for North and West Wiltshire Gavin Williams said officers were out on a separate incident at the time of the call.

“On Friday we got a call at 12.16 saying there were youths shouting and swearing.

“That was upgraded to a priority response at 12.39 when we received another call and officers were on the scene at 1.05.”