Another random thought popping into my head regarding HCW's comment here -
Asked if he had any forensic evidence putting Brueckner inside the flat where Madeleine was sleeping, he replied: “I have an answer but we have decided not to divulge this information.
“I can’t say ‘yes’ or ‘no’ as that would bring a thousand other questions and I cannot go into details.
German police 'don't need Madeleine McCann's body to prove suspect murdered her'
The curious thing about this is that HCW has previously said they have no
forensic evidence, so saying "no" would not have raised any eyebrows. Particularly when combined with the other comments he has made appealing on the phone call etc, it makes it sound like they have no real proof he was there. I don't think anyone would have expected him to answer anything other than "no" to that question so if he indeed has nothing, why not just say so?
But. When he talked about having no forensic evidence, that was in relation to MM's death. I'm wondering whether they may have in fact uncovered some forensic evidence of CB within 5A, possibly from one of the many hairs that the original investigation failed to attribute to any individual they tested against. And I'm wondering if the reason BKA are so keen to prove CB was on that call in PDL at 8pm is just in case CB tries to claim in his defence case that his DNA was left in 5A in an unrelated burglary on a different date.
After all, he tried to claim the hair in the DM rape got there after stroking her cat in the street. And who knows, that excuse might have been enough to invoke reasonable doubt and get him off if it weren't for it being combined with HB's testimony about witnessing CB raping someone in the exact same manner as what had happened to DM.
Would certainly explain why BKA are so convinced of his involvement, and why HCW feels so comfortable to make his strong assertions, but they still need 'more' evidence to absolutely ensure that conviction.
Just a possibility.
ETA: Another possibility that might explains HCW's response is that BKA 'don't know if there is forensic evidence putting CB in 5A because the Portuguese authorities are not allowing them to test the samples. There were previous reports of friction and unwillingness to hand over samples. Maybe, there is a lot politics going on due to the fact the Germans arw refusing to share their evidence of proof with PJ (a prerequisite to hand over evidence) and so an exhaustive DNA analysis against CB has yet to take place.