A man who offered a 12-year-old girl cocaine so she would have sex with him has been jailed.
Victor Kelly asked young girls to call him Uncle Joe
Victor Kelly, 62, admitted supplying the drug and sexual assault, but police believe he abused dozens of girls under 14 over the past decade.
He was arrested after police bugged his flat in Guinness Close, Hayes, and his car for four days.
Kelly was told he would serve half his eight-year sentence in jail and half of it on licence.
Middlesex Guildhall Crown Court heard Kelly would befriend girls' families before inviting the children back to his flat in Guinness Close, Hayes.
There, they would watch his £2,500 television and use his computer games.
Kelly, who like to be called Uncle Joe, would also buy them mobile phones.
Police began to watch his flat on 11 February and arrested him a month later - prosecutor Michael Corkery QC said a "constant stream of young girls" had been seen going in.
In a recorded tape, Dublin-born Kelly referred to cocaine as "milk" and cannabis as "butter" as he lured the 12-year-old girl into taking drugs.
Judge Timothy Lawrence said Kelly had "groomed" the girl "with the obvious intention of ultimately involving her in sexual intercourse with you, a man in your 60s, and she a child of only 12."
The court heard Kelly had a string of criminal convictions, including theft, burglary and drugs offences.
But Joe Stone, defending, said he was "in the last chapter of his life", suffering serious health problems, including stab wounds from stepping in to help a stranger who was being robbed in 2002.
He said the girl was "streetwise", and had already been exposed to drugs, and added that despite the large police operation, there had only been one complaint made against Kelly.
But outside court, Det Chief Insp Matt Sarti described Kelly as a "ruthless man who presents a real threat to children".
"I strongly believe that Kelly is a serial groomer and abuser of children who has preyed on other young girls in the past.
"Therefore I would urge anyone who believes that they have been a victim to come forward in the strictest confidence."
Kelly was sentenced for four charges including grooming a child for sexual purposes, indecent assault of a child, supplying cocaine to a child and offering to supply cocaine to a child.
He was put on the sex offenders' register for life and the judge made an order banning him from being alone with children, or telephoning or texting them.