A former police chief repeatedly molested a schoolgirl before raping her in his home, a court heard yesterday.

John Walker, of Buckwell Crescent, Hill Morton, Rugby, allegedly carried out abuse after taking the troubled girl to his home in her school holidays.

But rather than help the teenager, the then- chief inspector subjected her to a series of sexual assaults, culminating in rape shortly before her 16th birthday, it was claimed.

Prosecutor David Herbert told a jury at Leicester Crown Court 55-year-old Walker was friendly with the teenager's father and was entrusted to look after her when she returned from school.

The lawyer said Walker, in his late 30s at the time of the alleged offences, was a "trusted authority figure", and his victim would often stay overnight at his home in a Leicestershire village.

Mr Herbert said: "Her father looked to John Walker to help look after her from time to time and help keep her on the straight and narrow. He was a senior police officer, plainly a figure of authority to any teenager."

Mr Herbert said the attacks started in April 1986, when Walker, who served with Leicestershire police for more than 20 years, indecently touched the girl as she slept in his spare room.

A pattern of similar incidents occurred over the following year, with Walker waiting until his teenage bride Marie went to bed before approaching his victim, the jury heard.

The prosecutor said Walker would play pornographic videos, or ply the 15-year-old with whisky.

Other times he would follow her to her room when she was undressing.

Mr Herbert told the court: "(He would) wait for his wife to go to bed and put pornographic material on for the girl to watch. He would allow her to have whisky, perhaps so she would be less likely to protest about what he was doing to her. She recalls she felt unable to prevent what was happening. He was an authority figure, a senior policeman, a man she looked up to, and her father's friend."

Mr Herbert told the jury Walker's alleged victim, now in her early 30s, reported the abuse to the police last year, after reading in a newspaper Walker had been convicted of molesting another child.

The jury was told in January 2004 Walker had admitted indecently assaulting a 12-year-old girl at a family party at his home. He escaped jail because the Judge accepted Walker's mitigation the assault was an isolated incident.

But Mr Herbert continued: "Knowing this was not an isolated incident, she decided to contact the police."

The prosecutor said Walker had denied the accusations, but has since admitted a single count of indecent assault.

He also admits having sex with her when she was a teenager, claiming he thought she was 16 and consenting.

He denies a single charge of rape and six offences of indecent assault between April 1986 and April 1987.

The trial continues.