The partner of a chemistry teacher facing prison over sexual contact with two former pupils has been accused of threatening a detective who worked on her case.Darren Scotchbrook sent threatening and abusive emails to Detective Sergeant Terry Mulcahy, St Albans Magistrates' Court heard in July.The messages were alleged to have been sent just weeks before Scotchbrook gave evidence in support of Sally-Anne Bowen, his partner of almost 40 years, at her trial, during which he spoke intimately about their sex life before the jury.But despite his efforts to help get her cleared, disgraced Bowen, 65, was today found guilty of having sex with one 14-year-old pupil up to 30 times and of kissing another teenage boy and allowing him to fondle her sexually.With Bowen now facing prison, the allegations against her long-term partner Scotchbrook can be reported for the first time.Scotchbrook, who is eight years her junior and whom she met when he was 20, is accused of racially aggravated harassment, having allegedly sent the lead investigating officer in the case, Detective Sergeant Terry Mulcahy, numerous threatening emails at the end of July.In so doing he also is accused of showing 'hostility' towards Pakistani people. He is facing a separate trial involving allegations of harassment involving four victims, which is also linked to the case.Scotchbrook, with whom Bowen has a 24-year-old daughter, is expected to appear in court next month over the allegations, with a trial expected this year or in early 2027. Disgraced former chemistry teacher Sally-Anne Bowen, 65, was convicted this week of having sex with one of her pupils up to 30 times - and kissing another when she taught at Christ's College in Finchley, north London, when they were aged 14 and 15 in the late 1980s Bowen's partner of 36 years, Darren Scotchbrook, eight years her junior and whom she met when he was 20, is accused of threatening the detective who worked her case Bowen denied the claims, stelling the court that she had a low libido and suffered a congenital gynaecological condition that meant she found sex painful and didn't enjoy having it Bowen's trial at Harrow Crown Court heard how she had dressed in a sexually risqué manner and acted provocatively as if she was in a Sabrina Carpenter music video while she taught chemistry at Christ's College in Finchley, north London, between 1986 and 1988.Then 25, and in her first teaching job, she would also often stray away from chemistry in class and engage in conversations about sex.On the final day of evidence for the defence, Scotchbrook, who met Bowen in 1990, gave evidence for the defence in which he spoke about their sex life, saying that his partner was often 'reluctant' and that the sex was always 'quick'. He described the first time he had sex with her as unlike anything he had experienced before.Scotchbrook, who was flamboyantly dressed in a pinstripe suit and red waistcoat, discussed their sex life across their 36-year relationship.Bowen and Scotchbrook set up home in Hemel Hempstead where they lived in a modest terraced house.His evidence was often intimate, and at one point he admitted: 'I was never a great lover. I have always been quick.'Scotchbrook said the pair met in a pub in Catford, south London, when he was about 20 and she was 28.He told how they went for dinner on a boat in the Thames on their first date, but when they went home she did not want to have sex with him.Scotchbrook said: 'I was a bit upset about it. I spent £200 on dinner.'He added that sex was 'clearly' not as enjoyable for Bowen as he would have liked, that she was often 'reluctant' to have intercourse and that it also left him feeling 'sore'.One of the boys said he had sex with Bowen 'about 20 or 30 times' over several months.He said he had fallen in love with her, considering her to be his girlfriend and would visit her home.The second complainant alleged he and Bowen kissed once in a cafe when he was 'goaded' into it by other boys, and remembers touching her breasts.A third former pupil told jurors there was an occasion when a boy in Bowen's class was reading a 'sex manual', which he believed to be the Kama Sutra.He said Bowen went through the book and went on to discuss 'the merits of different sexual positions' with the students, which Bowen denied.In her own evidence, Bowen denied dressing suggestively, but told jurors she 'wasn't going to dress like Margaret Thatcher', who was prime minister at the time.She insisted that did not wear tight tops or mini skirts as suggested by the prosecution.She said: 'They were not very short; I would not have been allowed to get away with very short skirts. They were not mini skirts.'Bowen claimed the allegations were a 'total fabrication' and 'the workings of a fantasy'.Madeleine Wolfe, prosecuting, asked Bowen if she could think of any reasons why the first complainant would pursue these allegations more than 30 years later.She replied: 'I don't know why he is making these allegations. I have no idea what is going on at this point. I think he certainly had a crush on me at school.'Of the second complainant, Bowen said she did not even remember the boy and does not know who he is.Bowen said she would be subject to some inappropriate comments from pupils because she was young and one of the only female teachers at the school. Scotchbrook was pictured with Bowen outside court this week where he gave evidence in her defence on the last day to reveal intimate details of the couple's sex lifeShe went on: 'It was not a huge problem – I would hear comments as I walked past and I ignored them, they didn't result in me being hassled or harassed.'I have never in my teaching career seen boys looking at a pornographic magazine – the only magazine that I ever confiscated was a football magazine.'When asked if she treated the boys as 'friends' rather than pupils, she denied ever discussing inappropriate topics with them, adding: 'I was a nice person and students spoke to me.'I wanted to be liked and I make no apology for that – I was young, it was my first teaching job, of course I wanted to be liked.'Bowen was banned from teaching by the Teaching Regulatory Agency in December 2023.