Sheffield judges sentenced them to a total of 259 years and seven months behind bars between them.
Some of these defendants acknowledged their wrongdoing through guilty pleas, and accordingly, got time off the length of their prison sentence.
Others sought to deny their crimes, and were convicted at the conclusion of their Sheffield Crown Court trials.
The shortest sentence passed down to the sex offenders included in this list is one of 34 months, while the longest sentence currently being served by these offenders is one of 20 years.
After serving their sentences, a number of these offenders will remain on the sex offenders’ register for a set period of time.

25. Mohammed Hanif Khan: Jailed for 13 years
Mohammed Hanif Khan, of Blagden Street, Wybourn, Sheffield served as Imam at a mosque in Bradford back in the 1990s. During that time, the 57-year-old befriended a child and used his position to subject him to a series of sexual abuse over many years. Decades later and the predator has finally been brought to justice. Khan pleaded guilty to rape. In June 2025, Khan was sentenced to 13 years in prison with three years on extended licence. He was already on the sex offenders’ register for life. | SYP

26. Clifford Hayes: Jailed for six years
Clifford Hayes breached a sexual harm prevention order to sexually assault two women in their 20s on train journeys a matter of hours apart. Hayes, of no fixed abode, sought to deny his crimes, but was found guilty to two counts of sexual assault at the conclusion of a Nottingham Crown Court trial earlier this month (March 2025). The court heard how the first attack carried out by Hayes took place on the 8.44am train from Nottingham to Liverpool on Monday, October 7, 2024. A British Transport Police spokesperson said: “A woman aged 27 was sat on the train when Hayes took a seat next to her.” He placed a coat over his lap and performed a lewd act b,efore sexually assaulting the woman. “Later that same day on the 4.43pm East Midlands train from Sheffield to Liverpool, Hayes sat next to another woman in her twenties,” the spokesperson continued. “He again placed his coat over his lap before sexually assaulting her. “Hayes was identified through CCTV and was later arrested at Nottingham Railway Station.” During his sentencing hearing on Friday, March 14, 2025, Hayes was handed a six year prison sentence and a four year licence extension meaning he must serve at least two-thirds of his sentence before being considered for parole release. | BTP

