Case No. 0074Assault causing harm · Co. Dublin · 3 Mar 2025

Crack cocaine user remanded for headbutting garda unconscious in Dublin court

Jason Gumble, a 33-year-old man with 148 previous convictions, headbutted Garda Conor O'Dwyer unconscious in the Courts of Criminal Justice, Dublin 8, on 3 March 2025 while being removed from Dublin District Court after a failed bail application. Gumble was using crack cocaine at the time and had been shouting profanities at the judge and his lawyer. Garda O'Dwyer was treated at Mater Hospital for concussion and soft tissue damage and was out of work for four weeks. Gumble pleaded guilty to assault causing harm, and Judge Orla Crowe remanded him in custody to 14 January 2027 for sentencing, directing a Probation Services assessment including mental health assessment and drug testing.

  1. Reportednot reported
  2. Arrestednot reported
  3. Chargednot reported
  4. In court22 Oct
  5. Verdict
  6. Sentenced
reportedhappened, not reportedlatest stagenot yet

Key facts

consolidated from all reports
What happened
  • Jason Gumble (33) headbutted Garda Conor O'Dwyer unconscious while being removed from Dublin District Court after a failed bail application.
  • Garda O'Dwyer was treated at Mater Hospital for concussion and soft tissue damage and was out of work for four weeks.
  • Gumble has 148 previous convictions and was on a suspended sentence for threatening and insulting behaviour imposed less than two months before the assault.
Where
The assault occurred at the Courts of Criminal Justice, Parkgate Street, Dublin 8.
When
The assault took place on 3 March 2025.
Cause
Gumble was using crack cocaine and had been shouting profanities at the judge and his lawyer before the assault.
Charges
Gumble pleaded guilty to assault causing harm.
In court
  • Judge Orla Crowe remanded Gumble in custody to 14 January 2027 for sentencing.
  • A Probation Services assessment including mental health assessment and drug testing was directed.
Other details
Defence counsel said Gumble was intoxicated and under psychosis at the time of the assault.
14 statements extracted from the articles
  • whatO'Dwyer was treated at Mater Hospital for concussion and soft tissue damage (irishmirror.ie)
  • whatO'Dwyer was out of work for four weeks (irishmirror.ie)
  • whatGumble has 148 previous convictions including assault, burglary, possession of knives, drug dealing, threatening to assault a police officer, resisting arrest, car theft and handling stolen property (irishmirror.ie)
  • whatGumble was subject to a suspended sentence for threatening and insulting behaviour imposed less than two months before the assault (irishmirror.ie)
  • whatGumble was using crack cocaine at the time of the assault (irishmirror.ie)
  • whatBefore the assault Gumble was shouting profanities at the judge and his lawyer (irishmirror.ie)
  • whatDefence counsel said Gumble was intoxicated and under psychosis at the time (irishmirror.ie)
  • whatO'Dwyer has ongoing difficulties with sleep and is more irritable than before (irishmirror.ie)
  • whatO'Dwyer feels more apprehensive and conscious of his own safety at work (irishmirror.ie)
  • whereThe assault occurred at the Courts of Criminal Justice, Parkgate Street, Dublin 8 (irishmirror.ie)
  • whenThe assault took place on 3 March 2025 (irishmirror.ie)
  • chargeGumble pleaded guilty to assault causing harm (irishmirror.ie)
  • courtJudge Orla Crowe remanded Gumble in custody to 14 January for sentencing (irishmirror.ie)
  • courtA Probation Services assessment including mental health assessment and drug testing was directed (irishmirror.ie)

The reporting

newest first
  1. 22 Oct2026
    Crack cocaine addict knocked garda unconscious with courtroom headbutt

    Reports the sentencing hearing where Gumble was remanded in custody to 14 January 2027; details the victim impact statement, his 148 previous convictions, and his defence of intoxication and psychosis while using crack cocaine.

    convicted, Jason Gumble, 33, male, named, irish (judged from name)Jason Gumblevictim, male, irish (judged from name)