In 2019, the Offender Database recorded that John and Mary Gillies were jailed for a series of sexual offences committed against two children during the 1990s. Following a three-week trial at Reading Crown Court, the husband and wife—then aged 65 and 60, of White Paddock, Maidenhead, Berkshire—were convicted of crimes including rape and indecent assault. It was reported that the abuse took place between 1992 and 1996, during which time the victims were also forced to watch pornographic films.
The investigation established that the victims were both under the age of 16 at the time the offences occurred. Thames Valley Police reported that while John Gillies raped and indecently assaulted the children, Mary Gillies would join them in bed to force the victims to participate in sexual acts with her. The prosecution reported that the couple systematically weakened the free will and self-esteem of the young people to maintain control over several years.
Judicial Findings and Investigative Detail
The court reported that a jury returned unanimous guilty verdicts against both defendants for their roles in the abuse. Reading Crown Court heard that John Gillies was found guilty of 11 offences, while Mary Gillies was convicted of indecent assault and cruelty to a person under 16. The investigation established that despite the passage of more than two decades, the forensic and testimonial evidence was sufficient to secure convictions, proving that time is no barrier to justice for non-recent offences.
Det Cons Hannah Broughton praised the remarkable courage of the victims in facing their abusers in court. For their actions in Maidenhead, Berkshire, John Gillies was sentenced to 18 years in prison, while Mary Gillies received a four-and-a-half-year term. The judge noted that the pair had exploited their positions of power to inflict lasting trauma, and their sentences reflected the gravity of the prolonged abuse.
Status and Statutory Requirements
For the crimes reported in England, the status of John and Mary Gillies as of late 2019 was as follows:
- Custodial Sentence (John): 18 years (Sentenced 2019).
- Custodial Sentence (Mary): 4 years and 6 months (Sentenced 2019).
- Sex Offenders Register: Both made registered sex offenders for life.
- Judicial Oversight: Sentenced at Reading Crown Court following a Thames Valley Police investigation.
- Criminal Record: Rape; Indecent assault; Cruelty to a person under 16.
- Origin: White Paddock, Maidenhead, Berkshire.
Monitoring and Public Protection
The couple is managed under Multi-Agency Public Protection Arrangements (MAPPA) within the Thames Valley area. Due to the nature of their conduct in Maidenhead, which involved coordinated sexual violence and the psychological grooming of children, their management is a priority. Authorities state that their status as life-long registered sex offenders ensures they will be subject to strict notification requirements and monitoring by the Public Protection Unit should they ever be released.
As registered sex offenders for life, the details of John and Mary Gillies are permanently logged on the national police database. Authorities state that their history of predatory behaviour in Berkshire requires permanent vigilance to ensure they never have unsupervised access to children again. Any failure to comply with their notification requirements or any attempt to contact their victims will result in immediate arrest to uphold the protection of the public and the integrity of the justice system.
If you or anyone you know has been affected by the individuals highlighted on this website, please report them to the Police on 101 (999 in an emergency) or visit their online resources for further details on reporting a crime. You can also report to Crimestoppers if you wish to remain completely anonymous. There is help available on our support links page.

