In 2020, the Offender Database recorded that 44-year-old Mark Aspin—of Endeavour Crescent, Hull—and his partner, 46-year-old Debbie Pickersgill—of Buckingham Street, Hull—were jailed for a “sickening” campaign of sexual violence against children. Aspin appeared at Grimsby Crown Court where he was found guilty of 22 offences, including nine counts of rape of children under 13 and 16. It was reported that the investigation established Aspin groomed and systematically abused three teenage girls, with the first rapes occurring when one victim was just 11 years old.
The investigation established that Aspin utilised extreme violence and coercion, in one instance raping a girl until she passed out while Pickersgill watched. The prosecution reported that Aspin “roped in” Pickersgill to participate in group sexual activity with two of his young victims. Grimsby Crown Court heard that the crimes remained a “dark and evil secret” until April 2020, when two of the survivors displayed the immense courage required to report the abuse to Humberside Police.
Judicial Findings and Investigative Detail
The court reported that Aspin had “utterly blighted” the childhoods of the three girls, leaving long-term psychological damage. The investigation established that Pickersgill participated in the abuse to provide Aspin with pleasure, though the jury found she had been subjected to violence and acted under “duress” during certain incidents. The prosecution reported that while Pickersgill was honest during the trial, she was convicted for her failure to report the abuse to authorities or seek help to disengage from the situation.
Judge-led proceedings at Grimsby Crown Court concluded on 4 December 2020, with Judge Ahmed Nadim sentencing the pair to a combined 30 years. For his actions in Hull and the “vile” destruction of innocence reported, Aspin was jailed for 27 years, while Pickersgill received a three-year sentence. The judge noted that the survivors could “hold their heads high,” as their testimony had profoundly influenced the court’s decision to remove these “sick” predators from society.
Status and Statutory Requirements
For the records reported in East Yorkshire and North East Lincolnshire, the status of Mark Aspin and Debbie Pickersgill as of April 10, 2026, was as follows:
Mark Aspin:
- Custodial Status: SERVING (27-year custodial term; sentenced 2020; currently incarcerated).
- Release Eligibility: Not before serving at least 13.5 years (2034) before Parole Board consideration.
- Sex Offenders Register: Notification requirements are active for LIFE.
- SHPO Status: Subject to an INDEFINITE Sexual Harm Prevention Order.
Debbie Pickersgill:
- Custodial Status: RELEASED ON LICENCE (Sentenced to 3 years in 2020; served custodial term; currently under supervision).
- Sex Offenders Register: Notification requirements are active for LIFE.
- DBS Status: Both placed on the Barring List (Indefinite ban on working with children or vulnerable adults).
- Legal Status: CONVICTED (Aspin: Rape x9, Child cruelty x2, Attempted rape, Inciting sexual activity x3; Pickersgill: Sexual activity with a child x3).
- Judicial Oversight: Sentenced at Grimsby Crown Court; investigated by Humberside Police.
- Origin: Hull, East Yorkshire.
Monitoring and Public Protection
Aspin is managed as a Very High Risk dangerous sex offender within the prison system and will be subject to the most intensive tier of statutory supervision for the remainder of his life. Due to the nature of his conduct—specifically his “calculated grooming and the use of a partner to facilitate group abuse”—his management is a priority for the Multi-Agency Public Protection Arrangements (MAPPA) at Level 3. Authorities state that his propensity for extreme violence identifies him as an individual who requires permanent removal from society and total digital and physical exclusion from children.
As registered sex offenders for life, the pair’s details are permanently logged on the national police database. Authorities state that Pickersgill’s release involves strict licensing conditions to ensure she does not associate with Aspin or any individuals who may pose a risk to minors. Any change of residence in Hull or elsewhere, any attempt by Pickersgill to bypass her supervision, or any unauthorised proximity to children by either party will result in immediate arrest to ensure the ongoing safety of the public from two individuals who demonstrated a “truly dark and evil intent.”
QUESTION – Given that the female offender was found to have acted under “duress” yet still participated in the abuse of children, do you believe that “Duress” should be a valid legal defence in child sexual abuse cases, or should the “Failure to Protect” carry a mandatory minimum sentence regardless of the threat to the co-accused?
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