A FORMER children's home volunteer has been convicted of grooming and sexually abusing three children in care more than 30 years ago.

Joe Duffy, 60, from Glasgow, who has been a civilian custody officer with Police Scotland for 20 years, was convicted of raping two young sisters and and sexually abusing a young boy at a Glasgow home run by nuns in the 1980's

Duffy, who worked as a turnkey at Clydebank police office, described the allegations as 'mind-boggling and incredible,” but a jury took lest than two hours to convict him of the vile offences.

The jury heard that during his time as a volunteer at the children's home, Duffy would drive a minibus and take the children to the swimming pool and on outings to Loch Lomond and other places

He would also stay at the home on Friday nights and sleep over.

One of Duffy's victim told of how he raped her at one of these sleepovers when she was 12 and he was 24 or 25.

Her sister told the court: “Joe abused me for many years. It moved from a safe relationship to something inappropriate. He began touching me when I was 13 or 14.”

She said that Duffy sexually abused her as they swam at Eastwood swimming pool and that he raped her at his home on the day she left the care home.

Duffy was supposed to drive her home to her family, but instead took her to his Glasgow home and raped her.

A 46-year-old man told the court that Duffy abused him at the home. Duffy also took him from the care home on a number of weekends and sexually abused him.

He said: “Every night it got seriously worser and worser.”

The witness said that Duffy would strip naked, get into bed with him and sexually abuse him.

Duffy was cleared of sexually abusing two other boys at the care home.

He will be sentenced at the High Court in Aberdeen on March 16.