Graham Dwyer's trial has heard traffic between 2 Nokia phones found in a Wicklow reservoir, with Elaine O'Hara's belongings, ended on the day of her alleged murder.
The 42 year old architect denies killing the childcare worker at Killakee Mountain on the 22nd August 2012 in what is alleged to have been a sexually motivated attack.
Traffic between 5 mobile phones has been analsysed there is Elaine O'Hara's iPhone and there is Graham Dwyer's work phone.
Then there are 2 phones found in the Vartry Reservoir which are alleged to be secret phones the two used almost exclusively to contact each other.
The reservoir phones have the number of the other saved in contacts – under the name 'slv' or slave in one and 'mstr' or master in the other.
The jury heard there were more than 13 hundred messages between these phones but contact ended on August 22nd 2012 the day of the alleged murder.
There is also a fifth prepaid 083 number which the prosecution alleges is another secret phone used by the accused.
