A sick former music teacher revealed to police he indecently assaulted a child 40 years ago after officers found thousands of perverted images on his computer.
John Derrett, 64, was arrested when police find thousands of the horrific images on his computer last year. His collection was so vast police could view 11,000 images, leaving nearly a million untouched, and was jailed for a year back in November at Hull Crown Court.
But, when officers initially arrested him, Derrett, who was an organist at Holy Trinity for two years and now lives in Keyingham, confessed that he was also guilty of historic sex offences alongside creating the thousands of perverted images.
During his police interview, he told officers that he had sexually abused three boys dating to the period November 1977 to November 1980 while working in the Shropshire area.
Mr Robert Edwards, prosecuting barrister, told the the hearing at Shrewsbury Crown Court on Tuesday: “In December 2016 the defendant was arrested by police in Humberside as attention had been drawn to him over concerns that he was in possession off indecent images of children.
“He was subsequently prosecuted and jailed for 12 months.
“During the course of that interview he volunteered that he was responsible for historic offences. He disclosed that he had been a church choir leader and the offences were while he had been working in schools in the Shropshire area.
“He gave details of three children, all would now be adults. Only one of them them was traced and it is only he who has made a statement of complaint.”
Mr Edwards told that the victim recalled that he was aged 13 to 15 when he was assaulted on a number of occasions at Derrett’s home address when they were alone.
Derrett, of Ings Lane, Keyingham, was a choirmaster and music teacher, and first met the victim at choir rehearsals and later offered him music lessons. The victim described how the offences were “occasional and sporadic”.
Mr Bernard Porter, defending, said Derrett admitted he was attracted to young boys and knew it was “grossly illegal, but it seemed to be the way he was wired, it certainly wasn’t a lifestyle choice”.
He said Derrett admitted indecent assault at an earlier hearing and he could not understand why the investigating officers had not dealt with all the offences together last year.
“This is an exceptional case in some sense because it’s historical and is dated some 40 years ago. It is almost certain that had he not disclosed them, giving specific details the prospect of it ever coming the court would have been nil.”
“None of the people involved have ever come forward in that time to make any complaint,” Mr Porter added.
Derrett had been a school teacher and music teacher until his retirement in 2000, worked with choirs until 2007, and was organist at Holy Trinity between 2005 and 2007.
In his previous sentencing at Hull Crown Court , the court heard that in one of his interviews, he had “talked about finding boys aged 14 and upwards sexually attractive, but to get aroused I need them younger”.
Sentencing Derrett to 20 months immediate imprisonment, Mr Recorder Stephen Thomas told him if that he had subsequently denied the charge and then been found guilty by a jury after a trial he would have been jailed for 30 months.
Join our Hull Court News Facebook group
We have launched a new Facebook group to bring you all the latest news from Hull’s courts.
Whether it’s Crown Court or Magistrates Court, our group will bring you all the latest updates as criminals are brought to justice.
To join our Facebook group, click here.
However, the sentence was being reduced by a third due to “the particular circumstances”.
The judge said Derret’s age, his references, and voluntary disclosure had been taken in consideration under the sentencing guidelines.
“All of these have been taken into account along with the seriousness of what you did to this young boy. No-one else has come forward, but it is sometimes its embarrassment and shame that stops young man from coming forward,” Mr Recorder Thomas said.
Derrett is subject to a Sexual Harm Prevention Order for six years and a notification order. He must serve at least half the jail term before being released on licence.