A ringleader of a group banned from entering an estate after terrorising residents has been jailed for 28 days after he returned to the area.

Anthony Ahmet, 22, was given an injunction which banned him from the Andover Estate off Seven Sisters Road, Holloway, following complaints from the public that he was part of a group behaving anti-socially – including congregating in communal areas drinking, smoking and taking drugs.

In a massive blunder by Islington Council, the personal details of 51 people who reported the gang to the authority’s flagship Anti-Social Behaviour line were then inadvertently handed to the 10 yobs they had complained about – many of whom did not live on the estate.

The sensitive data included names, street names and phone numbers and at least six families had to be rehoused as a result.

Ahmet, of Hazelwood Drive, St Albans, was arrested by officers from the Finsbury Park Safer Neighbourhood Team (SNT) last Monday, October 15, after he was seen back at the Andover and appeared at Clerkenwell and Shoreditch County Court in Gee Street the following day.

He admitted breaching the court injunction banning him from the estate and was jailed for 28 days.

Sgt Paul Cruise from the Finsbury Park Safer Neighbourhoods team (SNT), which stepped up patrols after the blunder, said: “We are working hard to reduce anti-social behaviour in the Andover Estate and the injunctions served were for a purpose.

“Ahmet’s sentence should serve as a warning to others that we are watching and will take action against you if you are involved in criminal activity or blatantly ignore court action taken against you.”

Cllr Paul Convery, Islington Council’s executive member for community safety, said: “Residents want less crime and anti-social behaviour in Islington and I’m very pleased the judge took this so seriously.

“We’ll take decisive action to stop anti-social behaviour and as this case shows, if people don’t get the message, they face being locked up.”