A POLICE officer has gone on trial accused of raping a woman three years ago.

Andrew Robertson, 49, is said to have carried out the sex attack at the woman's Aberdeenshire home in January 2012 while another person held her down.

He denies the offence and lodged a special defence of consent when he went on trial at the High Court in Aberdeen yesterday.

The court heard evidence yesterday via video link from his alleged victim, who cannot be named for legal reasons. She said she had initially failed to report the alleged sexual assault as she feared it would tear her family apart.

The woman claimed that another female had been drinking heavily at her house on January 13.

But the court heard that the atmosphere turned "scary" when Mr Robertson turned up later and the two guests started making inappropriate comments.

The woman said: "They started making suggestions about having a threesome.

"I thought they were joking and just too drunk.

"They went from people that I thought were friends to behaving weird."

She added: "It became like a little game for them and I was the toy."

Mr Robertson, from Aboyne, is accused of restraining the woman with another person, seizing hold of her arms, preventing her from moving and raping her.

The court heard yesterday that the woman did not report the alleged rape despite calling police to her home in the early hours of January 14 to get rid of her two guests.

The rape allegation only came out later after officers approached the alleged victim directly.

Advocate depute Rosemary Guinnane asked the woman why she did not report it straight away.

The woman said: "Because I knew he was a police officer.

"Because I knew that he was a policeman that raped me.

"I didn't trust them."

She added: "I didn't want to report it to the police as I didn't want to end up here where I am now - this has torn my family apart."

The court was told that the other woman had pitched up at the alleged victim's house around 6pm with a litre of vodka, which she then proceeded to drink.

The woman herself opened a bottle of wine after putting her children to bed.

Mr Robertson arrived later, with a "special" bottle of champagne - that only his alleged victim drank from.

The woman said: "I had a tiny wee bit of that champagne.

"I actually made the remark that they were trying to poison me."

The woman claims that Mr Robertson and the other woman later intimidated her into playing a stripping game - after which she was left naked on a sofa in her living room.

She then claimed that the other woman held her down while Mr Robertson raped her.

She said: "He stared into her face and asked if he could have sex with me.

"He raped me.

"He had a hold of my legs.

"I said they were both very sick and I told them to stop."

However defence advocate Shelagh McCall proposed an alternative theory - claiming that the woman actually gave consent.

Ms McCall said: "Was it not more the case that you started the game of taking clothes off. You said 'we're all adults here, let's have a bit of fun'.

"Did you say to him 'come on then' and he took that as consent?"

The woman replied: "I wouldn't touch that man if he was the last man on earth - no, this is all lies."

But she failed to provide an explanation behind a picture shown to the jury of herself flashing her breasts for Mr Robertson's camera.

She claimed she did not remember exposing herself or Mr Robertson taking a picture.

The trial, before Lord Turnbull, continues.