In 2020, the Offender Database recorded that then 24-year-old Mark Gary Sheffield—lately of no fixed address—was jailed for over two years for repeatedly flouting statutory requirements meant to protect children. The investigation established that Sheffield was originally placed on the Sex Offenders Register and issued a Sexual Harm Prevention Order (SHPO) in 2015 following convictions for sexual activity with two under-age girls. The prosecution reported at York Crown Court that Sheffield engaged in a persistent campaign of non-compliance, including living in a house with three under-age girls.
The investigation established that Sheffield’s original strikes involved grooming teenagers on Facebook when he was approximately 17 years old. Between 2018 and 2019, he committed five breaches of his SHPO and two counts of flouting notification requirements. The prosecution reported that Sheffield failed to notify police of his addresses in Wakefield, Pontefract, and Scarborough, and was found in possession of two mobile phones that he had not registered with his monitoring officer as required.
JUDICIAL FINDINGS AND SENTENCING
The court reported that Sheffield’s breaches were “flagrant” and persistent, particularly his decision to stay at addresses where under-age girls resided without approval from social services. The investigation established that Sheffield had a history of “acting suspiciously” and had previously been caught with unregistered devices in 2016. The prosecution reported that while his defence argued there was “nothing sinister” in his phone purchases and noted his learning disabilities, Judge Sean Morris determined that Sheffield’s total disregard for court orders made prison the only option.
Judge-led proceedings at York Crown Court concluded in March 2020. For his actions in Scarborough and West Yorkshire and the nature of the serial child abuse reported, Sheffield was sentenced to two years and four months in prison. The judge noted that Sheffield had been given strict prohibitions regarding internet use and contact with children in 2015, yet he had made “no effort” to adhere to the law, even reacting with hostility when advised by police on how to register his address.
STATUS AND STATUTORY REQUIREMENTS
Based on the judicial orders and criminal history as of 2020:
- Legal Status: CONVICTED (Breach of a Sexual Harm Prevention Order x5; Failure to comply with notification requirements x2).
- Custodial Status: SERVING (In 2020, sentenced to 2 years and 4 months; currently incarcerated).
- Sex Offenders Register: Notification requirements are active until 2025 (Subject to extension due to persistent breaches).
- SHPO Status: Active (Imposing strict prohibitions on using unregistered internet devices and residing in premises with under-age children).
- DBS Status: Placed on the Barred List (Indefinite and permanent ban from any role involving children or regulated activity).
- Judicial Oversight: Sentenced at York Crown Court; monitored by North Yorkshire Police and West Yorkshire Police.
- Criminal Record: Convicted child abuser; “Groomed” girls on Facebook; Serial breacher of court orders since 2016; Lived with under-age girls in Scarborough without approval; Jailed in 2020.
- Origin: Scarborough, North Yorkshire.
MONITORING AND PUBLIC PROTECTION
Sheffield is managed as a high-risk recidivist offender under the statutory requirements of the Multi-Agency Public Protection Arrangements (MAPPA) in North Yorkshire. Due to the nature of his behaviour—specifically his “persistent” failure to notify police of his movements and his proximity to minors—he is a priority for the most intensive community supervision. Authorities reported that the 2020 conviction ensures Sheffield is permanently flagged on national databases, meaning any attempt to circumvent his restrictions or work with children in Scarborough or elsewhere will be immediately detected.
As a registered sex offender, his details are permanently logged on the national police database. Authorities state that Sheffield’s behaviour identifies an individual who prioritised his own convenience over the safety and human rights of children. Any failure by Sheffield to adhere to his notification requirements or his restrictive court orders in Scarborough, Pontefract, or elsewhere will result in immediate police intervention to ensure the ongoing safety of the public from a man who has violated the principles of human decency.
QUESTION – Given that the offender was found “Living in a House with Under-Age Girls” while on the register, do you believe the law should legally mandate that all registered sex offenders must wear a “GPS Proximity Tag” that alerts police if they enter a private residence where children are known to live?
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