"If you have evidence the codes were not adhered to let's see it".
It would appear there is no evidence then. Just suspicion based on hearsay.
I'm not sure where to look for evidence.
Re the Leonor issue: I couldn't find anything apart from a CdaM article stating that Leonor had been seen late at night after her interrogation, pending her arraignment the following morning. I did find a vague reference to blood on a seat, from memory in one of the judgements, but which didn't appear to have been investigated, apart from having been attriuted to "menstrual blood". I could hunt back to find where I already pointed that out, but it would take time. That explanation could be true, or might not be. Even if it is, the question that it raised for me was what her detention conditions over that interrogation period actually were. It's not clear for how much time she had a lawyer present, aside from signing on the dotted line.
Re the Joćo issue: in an in-depth interview with Leandro (way before the Madeleine case) cf the sub-forum, Leandro found his behaviour odd that day (Leandro was present to provide the keys to the house). That could be because Joćo was facing up to the enormity of what he had done, or it could equally be because he'd been threatened, beaten, or whatever, to coerce a confession. There's no way of knowing from what I've been able to find in what's readily online.
In this case, the case files aren't online, only the judgements and - largely - CdaM tabloid articles to go on.
As I've mentioned numerous times before (on the sub-forum), I've come across assertions in the judgements that left me wondering whether I was on a different planet. For example, unless I've misunderstood, it could be taken as fact that as most kids return home, she therefore did as well.