LM was an adolescent without counsel in an interrogation that was to determine the course of the rest of his life. IIUC this was the interview that even a Scottish court called "outrageous." This incident illustrates a substantial problem in the Scottish criminal justice system that call out for reform, and this case has at least one more example. And all you can comment on is that he lost his composure?! Even if we agree to focus on that, it can just as easily be taken as evidence of innocence as evidence of guilt.
Reform around such has already been put in place. It is the very essence of why it is applied that LM missed that reform by mere days. The law is constantly adapting, making changes.
The context of the whole time frame merited in a mere fraction with the over zealous behaviour of the police.
The transcripts, the application by AT, showed clearly that LM understood perfectly well his rights. He exercised those rights many times throughout the interview. He was not coerced and bullied into anything. He appealed and lost because of this.
Yet, until the release of the transcripts, the inference swayed heavily upon a boy being bullied for hours by the police - Nothing like it.