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.

42 South Africans Deported From Ireland
Investigations Continue After Woman Injured In Dublin
Convicted Paedophile Bill Kenneally Dies
Dáil Approves Proposal To Abolish Three-Day Abortion Waiting Period
Government Set To Announce Plans To Tackle Financial Crime
EPA Report Calls For Greater Urgency To Prevent Water Pollution
TDs To Vote On Removal Of Three Day Wait Period For Abortion
Dublin Airport Passenger Cap To Be Removed