Man jailed for over eight years for sex offences against children

An actor who preyed on young vulnerable victims has today (Wednesday 14 January) been jailed for sex offences against children.

John Shannon, who is also known as John Alford, aged 54, of Hartham Road, Islington, has been sentenced to eight years and six months in prison.

Shannon was also given a Sexual Harm Prevention Order and a Restraining Order until further order. He will also serve on the sex offenders register indefinitely.

Sentencing Shannon at St Albans Crown Court, judge Recorder Caroline Overington said in her pre-sentencing remarks: “The girls were in what should have been a safe environment, you (John) returned to this house after a night at the pub.

“You (John) were a trusted family friend and fully aware that the girls were 14 and 15 years of age.

“You (John) have shown a lack of acknowledgement of your offending and showed little remorse.”

Following a trial at St Albans Crown Court in September 2025, he was convicted and now today, sentenced for the following offences:

• Count 1 Sexual Activity with a child - 3 yrs concurrent
• Count 2 Sexual activity with a child - 3 years concurrent
• Count 3 Penetrative sexual activity with a child - 8 years 6 months
• Count 4 Penetrative sexual activity with a child - 6 years concurrent
• Count 5 Assault by penetration - 4 years concurrent
• Count 6 Sexual Assault - 8 months concurrent

Reports were received from two victims in April 2022, and an investigation was launched by Hertfordshire Constabulary’s specialist Sexual Offences Investigation Team (SOIT) into Shannon’s offending.

He was arrested shortly after the reports were made and was subsequently charged on 16 July 2023 following a complex investigation. Shannon pleaded not guilty to all charges at a hearing in St Albans Crown Court on 26 September 2023.

During the trial, the court heard that in the early hours of Saturday 9 April 2022, two girls aged 14 and 15 were having a sleepover at a friend's house in Hoddesdon. John Shannon arrived at the property during the evening as a guest of the homeowner and was intoxicated.

After purchasing and supplying the victims with alcohol, Shannon then lured one of the victims into sexual intercourse on two occasions. He also sexually assaulted the second victim twice whilst she was falling asleep on the sofa.

Shannon completely denied all charges put to him.

Investigator Laura Harrison from Hertfordshire Constabulary’s Sexual Offences Investigation Team, said: “I want to praise the bravery of our two victims for coming forward and reporting John Shannon’s horrific crimes to police.

“Shannon has not shown any of signs of remorse, from his interviews in custody, to the trial which his victims had to endure.

“I hope that our victims are now able to move on in their lives knowing that Shannon will now be spending a considerable amount of time behind bars.

“This result reinforces the message that Hertfordshire Constabulary has a zero tolerance to crimes of this nature, and I hope Shannon is able to reflect on his behaviour and the trauma his actions have caused, not only for the victims but for their families as well.”

Lawyer Chris White for the Crown Prosecution Service said: “John Shannon was fully aware of the girl’s ages, yet he chose to exploit them – giving them alcohol and then committing sexual offences against them.

“We commend the victims for reporting what happened. They were supported to give evidence against Shannon: their statements were recorded and played to the jury during the trial, and we arranged for screens to be provided so they did not have to face the defendant during cross examination.

“Shannon’s sentence today sends a clear message – we will pursue those who target young people for their own gratification.”

Hertfordshire has a range of support available. Beacon is Hertfordshire’s Victim Care Centre and is staffed by professionals from both Hertfordshire Constabulary and Catch 22, an independent organisation commissioned to support victims of crime in Hertfordshire. For more information on how to contact Beacon in the strictest confidence, visit https://hertfordshirebeacon.org/.