A paedophile who ran care homes for children in North Wales has been accused of procuring boys for child sex parties held for politicians in London's Dolphin Square.

John Allen was convicted last week at Mold Crown Court of 33 sex offences against children resident in his care homes. He is due to be sentenced tomorrow.

Now Dennis Parry, a former leader of Clwyd County Council, has told a Sunday newspaper that he suspects Allen supplied boys for the paedophile parties in Dolphin Square.

The apartment block in Pimlico has been home to many Westminster politicians. So far two people have alleged that they witnessed acts of sexual abuse during parties held at the address, which involved a paedophile ring with links to the government.

Allen, 73, denied 40 charges of sexual offences on children between 1968 and 1991, but was found guilty of most of them. He could receive a life sentence for his crimes.

At a trial in 1995 Allen was jailed for six years for child sex abuse.

Allen made large amounts of money from his care home business. By 1988 the company had 11 homes, expanding from Wales into Cheshire and Shropshire, and he was drawing an annual salary of more than £200,000.

According to a report in the Sunday Times Parry stated, with reference to Allen, that an individual with links to "our part of north Wales" procured "the young people and took them to Dolphin Square".

Parry says that the police were informed previously, but did not believe that there was an organised procurement network operating across the UK.