Jeffrey Gravell trial: Accused 'knew nothing of images'
A school IT manager told police he knew nothing of more than 400,000 indecent images of children found on computers at his home, a jury has heard.
Jeffrey Gravell, 53, denies possessing the images of children, and theft, at the court in Swansea's Guildhall.
The computers found at Mr Gravell's home belonged to Coedcae School in Llanelli, where he worked.
The judge in the case dropped a charge of handling stolen goods against Mr Gravell's partner, Helen Griffiths, 43.
She also denies theft.
The jury has heard that the images, including hundreds of the most serious category of child indecency images, were found on computers seized at the couple's home in Burry Port.
Dyfed-Powys Police Det Con Richard Davies, giving evidence on Thursday, described to the court a theft investigation which led to the discovery of large quantities of computers and equipment at the defendant's home.
When questioned about the discovery of indecent images on some computers and CDs, Mr Gravell, also giving evidence on Thursday, argued the images could have entered the computers without his knowledge.
He said they could have been put in during back-up procedures involving large quantities of material from the school computer network.
Mr Gravell told the jury he had regularly taken equipment home from the school to repair.
On Tuesday, the court heard from Coedcae School's former bursar Alan Williams, who said he had never given permission for Mr Gravell to take school computers home.
The case continues.