In 2026, the Offender Database reported that Stanislaw Pozniecki, then 49, of Billet Road, Walthamstow, Greater London, was sentenced to four years and nine months in prison. On 29 January 2026, Pozniecki appeared at Southwark Crown Court after a British Transport Police (BTP) investigation proved he had targeted and sexually assaulted a woman on a Jubilee Line train.
The investigation established that Pozniecki carried out a “vile” act of assault by penetration on the London Underground. Although he initially entered a plea of not guilty, the “overwhelming” evidence gathered by BTP led him to change his plea to guilty. The prosecution reported that Pozniecki intentionally targeted a woman travelling on the rail network, violating her safety in a “despicable” and predatory manner.
Judicial Findings and Investigative Detail
The court reported that Pozniecki’s conduct on the Jubilee Line was a “vicious” violation that necessitated a significant custodial term. During the sentencing, the judge emphasised that the public, particularly lone women, must be protected from such predatory behaviour on public transport. The prosecution emphasised that the meticulous gathering of CCTV and witness evidence by the British Transport Police was vital in forcing the defendant’s late admission of guilt.
The judge emphasised that the assault was a “reprehensible” act that showed a total lack of respect for the victim’s autonomy. The prosecution emphasised that the sentencing reflects the gravity of sexual violence committed within the transit system. For his crimes in London, the court determined that Pozniecki required a long-term prison sentence followed by 15 years of stringent behavioural restrictions to prevent any recurrence of his “vile” predatory actions.
Sentence and Statutory Requirements
For his crimes in England, Stanislaw Pozniecki was handed:
- Custodial Sentence: Four years and nine months in immediate custody.
- SHPO: A 15-year Sexual Harm Prevention Order was imposed with specific prohibitions.
- Financial Penalty: Ordered to pay a victim surcharge.
- Sex Offenders Register: Notification requirements are in effect for life.
- Conviction: Pled guilty to one count of Assault by Penetration.
Monitoring and Public Protection
Pozniecki is managed under Multi-Agency Public Protection Arrangements (MAPPA) by the Metropolitan Police and the British Transport Police. Due to the predatory nature of his assault on the rail network, his status is under high-level scrutiny by the Public Protection Unit.
As a lifetime member of the Sex Offenders Register, Pozniecki must comply with mandatory notification requirements regarding his residence in Billet Road, Walthamstow. Authorities state that his 15-year SHPO is a critical tool that legally bars him from approaching, touching, staring at, or sitting next to lone women on any UK rail network. Any breach of his registration conditions, his SHPO, or his licence terms upon release will result in his immediate arrest and return to Southwark Crown Court.
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