The murder trial of Graham Dwyer has been hearing from gardaí who say they extracted thousands of text messages from the phones and computer of his alleged victim Elaine O'Hara.
The 42-year-old architect of Kerrymount Close, Foxrock denies murdering the childcare worker at Killakee Mountain in Dublin in August 2012
The jury has not heard any evidence about the content of text messages found on Elaine O'Hara's iPhones.
The court heard today from DG Breege Wallace of the Computer Crime Unit that a calendar entry retrieved from Elaine O'Hara's Macbook dated June 30, 2011 notes an 083 number as being Graham's phone.
However, at the very beginning of this trial, in his opening address, barrister Sean Guerin said it is the prosecution's case that the childcare worker was in communication by phone with Graham Dwyer.
He said that the content of the messages found on a number of phones showed that they had an S&M relationship which involved stabbing.
The court is now hearing how gardaí went about extracting that information, including how forensic images were made of Elaine O'Hara's computer hard drive, which had been synched to her iPhone, and how these working copies were used to extract data including around 4,000 text messages – some of which were discovered despite having been deleted.
Two of the witnesses for this section of the case, 'Financial Crimes Analyst' numbers 1 and 2 will remain anonymous to protect their identities as they have worked for the Criminal Assets Bureau.