Some really interesting answers, IMO.
All IMO -
Asked about the baby receiving an injection of air:
'It would be very hard to push air through a long line. It's a hard pressure to push through'.
Bearing in mind she's responding to questioning about a deliberate injection/act, '
push' is not out of place as it might be if that wasn't in the question, such as 'how did the baby end up with an air embolism', BUT "it would be", "it's" and "through" do show she has experience of this, particularly "it's". The word "through" shows completion, it's very specific to the delivery into the body, and a person who hasn't done this (IMO) would not necessarily think of the point of delivery as opposed to injecting air into the fluid and it filtering down with the fluid at its own pace. She also knows about alarms on these machines which detect air and stop the administration, but she hasn't raised this to say it wouldn't be possible, showing she does know how to bypass the safety mechanism by using the port.
'I didn't deliberately give him any air'.'
No. I didn't do anything deliberate to (Baby) B to harm her'.
These are not denials of giving them air, they are only a denials of deliberate acts. So why hasn't she denied giving them air? She's opening the door to accidental administration as a defence, but why, when she knows the safety features of the equipment, she knows the training, and she's already revealed she knows it takes a deliberate bypass or a hard push through the line? Her answers by way of an accident defence that isn't possible show deception and clear attempts to manipulate the police, IMO.
Asked about the Facebook searches she carried out on [baby D's] her family, she said:
'I don't know what I was looking for, but I would not be looking for photos of dead babies'.
Whoops! she's revealed what she was looking for!!! IMO.
Letby admits she was 'frustrated' before death of baby she 'murdered'