An Ardgay woman who falsely claimed that she was raped on two separate occasions and assaulted on another, was this week jailed for two years and nine months.
Heather Bremner, 1 Struie Place, accused a number of men of raping her, including her husband.
Police launched two major enquiries and spent hours investigating the false allegations, Dornoch Sheriff Court heard.
The 38-year-old, who has an alcohol problem, was also examined by a police surgeon, and a forensic scientist was brought in to help with the enquiries.
Bremner appeared for sentencing at Monday's court having previously admitted three charges of wasting police time by making the false representations. Sentence had been deferred for background reports, including a psychiatric assessment.
Sheriff David Sutherland told Bremner he had no option but to impose a term of imprisonment.
He said: "Any allegation of rape, given the enormity of the crime, is taken very seriously and considerable police resources are involved and often officers are diverted from other enquiries.
"You have made such allegations not once, but on two separate occasions, placing in one charge your husband under suspicion, and indeed under detention, and on the other charge making allegations against a local woman and various local men.
"I do not consider, having read all the reports, that I can deal with this case other than by a custodial sentence."
Police were first called to Bremner's home in February 2003, prosecutor Roderick Urquhart told the court.
Officers found her in a distressed state and causing damage to her own home. She claimed then that she had been raped in November the previous year.
Bremner alleged her drink had been spiked during an evening out in Lairg. She came to in an unknown house where she claimed she was struck on the back of her head by a woman and raped by a number of men
She claimed to have made a 999 emergency call from the house at the time.
Fiscal Mr Urquhart said a subsequent enquiry revealed that there had indeed been an emergency call made on 16 November, 2002, from the accused saying she did not know where she was.
"The operator spoke to at least three different men in the house and Mrs Bremner could be heard in the background. She did not appear to be distressed or upset and there was no suggestion of an attack. She appeared to be drunk," said the fiscal.
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