Okay goddess I think I know of 2 cases where the friends' photographs were used. I will ask those two people if I can share details.
Are you the barrister for the defence by the way?
In addition, the defence/the jury may reasonably ask why the victim chose to have a friend photograph their injuries shortly after the alleged attack when numerous tv programmes, possibly including those you've provided links to, stress the importance of early reporting to the police to retrieve as much forensic evidence as possible.
There is much research showing that the victim does NOT disclose initially because of shame and self-blaming. More and more cases are being presented and the Prosecution Barrister will take KM through her answers before trial.
I personally didn't disclose from Thursday to Sunday. But my neighbour saw and photographed my main bruises. (I trusted her). During my initial police interview (in my home), the police asked why I had only reported after 3 days ..... my answer? "Because I had spoken to the Samaritans who said that suicide was not the way forward, reporting was".
A police female photographer came to my home on the Monday - but I still would not allow her to photograph the bruises around my vagina where I had been systematically kicked. I did go to A&E though and allowed a female doctor to see them. (I am sorry - I can't remember if I allowed A&E to photograph my vaginal injuries, but I don't think I did)
I was considered a 'credible witness' even though I was under counselling for grief. (My Husband died in 2001)
I had a great victim-support lady by my side throughout. She attended follow-up interviews with me, she made phone calls, and organised for a screen to be set up when I had to give my evidence in CC. It was first assigned to a Magistrates' Court but moved to County Court by the CPS. As it happened, my perpetrator did a last-minute guilty plea to the court on the day, based on all the evidence (including photographs) so I never had to go into the witness box.
I have heard since that my perpetrator was advised by his solicitor to plead not-guilty at every bail hearing 'because most women don't see it through to a trial'. My case happened in 2004 when the police focused on getting to trial quickly - before the fear and sleepless nights took over. My case came to trial in 5 months! I had no friends, no family - just me and the Samaritans and my Victim Supporter.
My perpetrator got 3 months custodial sentence (released after 6 weeks). It was reduced to 3 months for his guilty plea.