In 2018, the Offender Database recorded that Alan Stanhope, then 52, was jailed for 10 years for the systematic sexual abuse of his stepdaughter. On appearing at Portsmouth Crown Court, Hampshire, for sentencing, Stanhope was convicted of nine charges of sexual activity with a child. The court reported that the abuse began when the victim was 14 years old and was facilitated by the defendant using threats to maintain her silence.
The investigation established that Stanhope abused his position of trust within the family home to target the vulnerable teenager. Hampshire & Isle of Wight Constabulary reported that the victim, who later waived her anonymity to speak out, had lived in fear of the defendant for years. The prosecution reported that the victim finally reported the crimes because she felt she had to “fight for her life” and the happiness she deserved.
Judicial Findings and Investigative Detail
The court reported that Stanhope’s behaviour was calculated and involved the psychological manipulation of his victim through threats. Portsmouth Crown Court heard that the abuse had a profound impact on the girl’s development, but she expressed a sense of relief and happiness once he was behind bars. The prosecution reported that the nine convictions reflected a sustained period of offending that endangered the domestic environment.
The judge noted the severity of the betrayal of trust inherent in a stepfather abusing his child. For his actions in Portsmouth, Hampshire, Stanhope was handed a double-digit custodial sentence. The judge noted that the survivor’s courage in coming forward not only secured justice but also protected other family members from potential harm.
Sentence and Statutory Requirements
For his crimes in England, Alan Stanhope was handed:
- Custodial Sentence: 10 years in prison.
- Sex Offenders Register: Notification requirements are in effect for life.
- Judicial Oversight: Sentenced at Portsmouth Crown Court for nine sexual offences.
- Victim Protection: Subject to permanent restraining orders regarding the victim.
Monitoring and Public Protection
Stanhope is managed under Multi-Agency Public Protection Arrangements (MAPPA) by Hampshire & Isle of Wight Constabulary and the prison estate. Due to the “familial and predatory” nature of the abuse in Portsmouth, Hampshire, his management is subject to the highest level of oversight by the Public Protection Unit.
As a member of the Sex Offenders Register, Stanhope must comply with notification requirements regarding his identity and residence for the remainder of his life. Authorities state that his history of using threats to silence a child in his care necessitates permanent and stringent monitoring of his living arrangements and any access to minors. Any breach of his registration conditions or his licence terms upon release will result in immediate arrest and a return to Portsmouth Crown Court.
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.

