Following an investigation by West Yorkshire Police’s Professional Standards Directorate, Thompson stood trial at Kingston-upon-Hull Crown Court in July 2026.
He was found guilty of two counts of making indecent photographs of a child, one count of sending a communication conveying a threatening message and one count of intentionally encouraging or assisting the commission of an either-way offence.
The latter offence related to trying to arrange sexual activity with a child under 13.
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On Tuesday (Sep 22), Thompson appeared at Great Grimsby Crown Court, where he was handed an extended custodial sentence of six years.
He was also placed on the Sex Offenders Register for life and made subject to a Sexual Harm Prevention Order and indefinite restraining orders relating to the two victims. West Yorkshire Police has confirmed that misconduct proceedings will now be arranged, with a view to barring Thompson from working in any further role within policing.
Detective Chief Superintendent Tanya Wilkins, Head of West Yorkshire Police’s Professional Standards Directorate, said: “This police staff member has been involved in some really concerning behaviour online and as part of this has tried to arrange sexual activity with a child.
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“We acted swiftly on the information that was provided to us and on identifying that the suspect was a police staff member ensured he was immediately arrested and suspended from duty.
“Following the conclusion of this court case, we will now be arranging misconduct proceedings with a view to him being barred from working in any further role within policing.”
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