THE alleged 'sex book' found in the room of Michaela McAreavey was an insert from a women's magazine.
A friend of the family said that the sex manual, which a defence lawyer for one of the accused claimed is central to their case, is just an insert from female glossy publication Cosmopolitan.
The subject of the sex manual was brought up during the trial of the two hotel workers, accused of killing Michaela in her room while she was on honeymoon.
Meanwhile during this morning's proceedings, a policeman remained silent when asked what he did with one of the men accused of murdering Michaela McAreavey the morning after the crime.
Avinash Treebhoowoon, 30, alleges that police beat a confession out of him in the wake of the honeymooner's death in Mauritius last January.
Constable Seevathian of the Major Crime Investigation Team was questioned by a defence solicitor about what he and his team did with his client in a two-and-a-half hour period between them arriving at Legends Hotel where the 27-year-old was strangled, and Treebhoowoon making a statement in a local police station.
The court fell silent as the officer did not offer an answer.
After a few moments judge Mr Justice Prithviraj Fecknah intervened.
"Let the record show that the witness remains silent to this question," he said.
When further pressed, the officer told defence counsel Sanjeev Teeluckdharry that he was questioning the accused about his movements.
But he repeatedly answered "I can't remember" to a series of other questions posed by the lawyer about his involvement with the accused in the days after the murder of the daughter of Tyrone gaelic football boss Mickey Harte.
The court heard that a trip from the hotel to the local police station would take 30 minutes.
However, a logbook at the station records that Treebhoowoon arrived at the station some three hours after he was taken by police from the hotel.
The court adjourned further cross-examination of the police witness until a further date.
Forensic expert Susan Woodroffe was due to take the stand earlier today and cross examination of her account was expected to last the day.
Ms Woodroffe was flown to Mauritius over the weekend to outline the forensic tests on samples taken in the hotel room where Michaela was murdered.
Mrs McAreavey's father-in-law Brendan McAreavey and her sister-in-law Claire McAreavey watched the exchanges from the public gallery.
Her widower John has returned to the island but cannot be in court until he gives evidence as a prosecution witness.
Last night, the family of Michaela, the Hartes, and the family of her widower John McAreavey hit out at attempts to denigrate her memory.
"Obviously both families are very distressed and dismayed at any attempt to denigrate the memory of Michaela," the families said in a statement.
"However, they would like to thank the many family, friends and the wider public for their continued support and prayers as they endure this ordeal," the statement added.
"They would particularly ask that people continue to pray so that John may be granted the necessary strength to get through the very difficult and painful days ahead."
Court proceedings in Mauritius were adjourned for a time last week following fierce legal clashes when a defence lawyer tried to probe the sex life of the 27-year-old teacher from Co Tyrone and her husband John.
The daughter of Tyrone gaelic football boss Mickey Harte was found strangled in her room in the island's luxury Legends hotel last January.
Two hotel workers -- Avinash Treebhoowoon and Sandip Moneea, 42 -- deny murder.