Examination underway in to the moments before his arrest.
GSOS has launched an investigation into the arrest of a 17-year-old boy in Dublin city last week, after the teen sustained serious head injuries.
Teen detained on suspicion of public order incident but soon needed hospital treatment https://t.co/n3dWYQMhtg
— The Irish Times (@IrishTimes) June 10, 2021
The Irish Times reports that the boy was arrested on suspicion of a public order incident on East Essex Street last Tuesday and was then treated for head injuries in Beaumont Hospital following the arrest.
The paper understands GSOC has launched an investigation into the boy's movements on the street, prior to the arrest.

One Ban, All Banned: EU To Enforce Bloc-Wide Driving Disqualifications
Kildare Tenant Awarded €23,000 After Landlords Refused HAP Scheme
Asylum Seekers Still Allowed Enter Ireland Without Passports Or Documents, Officials Tell Kildare TD
Former Well-Known GAA Referee From Old Kilcullen Told He Faces Prison For Abuse Of Niece
Locals Urged To Make Their Votes Count In Tomorrow's Presidential Election
Land Owner To Decide If Details Will Be Released On Hundreds Of Skeletons Found In Naas
€10 Million Settlement For Celbridge Man With Cerebral Palsy In National Maternity Hospital Case
Clicks And Cash: Kildare TD Mark Wall Among Top Social Media Spenders During Last General Election