Alyce
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15:00Catherine Murphy
He says: “It’s not possible to date DNA. It’s not possible in this case to state that any DNA matching the profile of Mr Peers is as a result of direct contact by him with that bottle top.”
HM: “That’s true, yes.”
Mr Wright asks about “secondary or tertiary transfer”.
HM: “That is possible, yes. Secondary transfer is when DNA is transferred through an intermediary surface. For example, I pick up a cup, I put it down, one of you come and pick it up. My DNA has been transferred via that cup.”
PW: “As far as Mr Witham is concerned, there’s been some form of contact. For example, hand to hand between Mr Witham and Mr Peers. And thereafter Mr Witham has touched the bottle top and deposits DNA from Mr Peers on that item.”
HM: “If Mr Witham was the vector, I would expect his DNA to be found at a higher level.”
PW: “We can’t say in any event how long ago that DNA was deposited.”
HM: “That’s correct, yes.”
PW: “All we know is it was present when the item was recovered.”
HM: “That’s correct, yes.”
PW: “It being a moveable item, it’s not possible to say there has been the deposit of that DNA that matches Mr Peers by Mr Peers being present in the vehicle at that time.”
HM: “That’s correct, yes.”
PW: “You can’t identify a precise time when he was present in the vehicle and indeed his DNA does not demonstrate he was in the vehicle at the time of the deposit of the DNA. It may have been carried into the vehicle by the transfer of the bottle from some other location when his DNA was already present on that particular item.”
HM: “That’s correct yes.”
PW: “Or by some secondary transfer involving some other individual who has left the bottle top.”
She agrees.
Not clear when Peers was in the vehicle
Peter Wright will cross-examine the witness on behalf of Peers.He says: “It’s not possible to date DNA. It’s not possible in this case to state that any DNA matching the profile of Mr Peers is as a result of direct contact by him with that bottle top.”
HM: “That’s true, yes.”
Mr Wright asks about “secondary or tertiary transfer”.
HM: “That is possible, yes. Secondary transfer is when DNA is transferred through an intermediary surface. For example, I pick up a cup, I put it down, one of you come and pick it up. My DNA has been transferred via that cup.”
PW: “As far as Mr Witham is concerned, there’s been some form of contact. For example, hand to hand between Mr Witham and Mr Peers. And thereafter Mr Witham has touched the bottle top and deposits DNA from Mr Peers on that item.”
HM: “If Mr Witham was the vector, I would expect his DNA to be found at a higher level.”
PW: “We can’t say in any event how long ago that DNA was deposited.”
HM: “That’s correct, yes.”
PW: “All we know is it was present when the item was recovered.”
HM: “That’s correct, yes.”
PW: “It being a moveable item, it’s not possible to say there has been the deposit of that DNA that matches Mr Peers by Mr Peers being present in the vehicle at that time.”
HM: “That’s correct, yes.”
PW: “You can’t identify a precise time when he was present in the vehicle and indeed his DNA does not demonstrate he was in the vehicle at the time of the deposit of the DNA. It may have been carried into the vehicle by the transfer of the bottle from some other location when his DNA was already present on that particular item.”
HM: “That’s correct yes.”
PW: “Or by some secondary transfer involving some other individual who has left the bottle top.”
She agrees.
Ashley Dale murder trial as it happens
The 28-year-old was shot dead at her home on Leinster Road in Old Swan
www.liverpoolecho.co.uk