Blood marks were discovered in the bedroom of a teenager who was allegedly beaten up by four gardai as his mother was held against her will in a bathroom, a court heard today.
An officer with the Garda Siochana Ombudsman Commission (GSOC) claimed he photographed several blood stains on the wall, radiator and the frame of Owen Gaffney's bed.
Gardai Alan Conlon, Claire Delaney, Eoin Murtagh and Sean O'Leary are on trial accused of assault causing harm to Mr Gaffney, forcible entry and trespass at the family home in inner city Dublin on February 17, 2008.
Conlon, Delaney and Murtagh are also accused of the false imprisonment of Mr Gaffney's mother Fidelma in a bathroom of her Basin Street flat.
They all deny each of the charges.
A series of photographs of Mr Gaffney's bedroom were shown to the jury of six men and six women at Dublin Circuit Criminal Court.
Rody Butler, scenes of crime examiner with the garda watchdog, said he found several marks of blood on a wall and radiator next to Mr Gaffney's bed, on the bed frame, on a mirror and on a flag hanging on the wall.
"There appeared to be airborne blood marks on the right corner of the door," he added.
Three of the gardai, Delaney, 25, Murtagh, 30, and O'Leary, 34, were stationed in Kilmainham at the time and Conlon, 29, was stationed at Kevin Street.
Mr Gaffney was expected to give evidence this afternoon.