Roll of Honor
Incident
Shot and fatally wounded, while off duty, after intervening in an armed robbery on a security van at Barclays Bank in Bank Court, Hemel Hempstead. Having identified himself as a police officer he was arresting one robber when he was shot in the chest by another.
Posthumously awarded the Queen’s Gallantry Medal.
In Our Keeping
- Permanent identifier
BO-GB-HEC-32D70A50- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Police Constable Mason served with the Hertfordshire Constabulary.
Thank you for your service. Gone but never to be forgotten.
Rest easy, Police Constable Mason.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Constable Francis John Mason is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,784 officers honored here.
In ENG, 702 of 2,827 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 24.8% of this state's fallen. That is 24.8 percentage points above the national rate of 0%.
At Hertfordshire Constabulary, 5 of 23 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 21.7% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Francis John Mason's cause is highlighted.
How Francis John Mason Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Francis John Mason is highlighted in Apr.
Weapons Used Against Officers
Most common weapons in felonious officer deaths.
Others Who Wore This Badge
22 officers from Hertfordshire Constabulary are honored on badge.nw. Showing the 16 most recent.
