I don't know; if they did not do this or use other tests, then I would question their competence. It is not easy to clean up blood to the point that it is not detectable by luminol or fluorescein (see next comment). Yes, LM was intelligent enough to see a flaw in an argument he was presented concerning DNA, but that does not make him "forensically aware." This term was also applied to Andrew Malkinson, in order to explain a lack of forensic evidence. Yet a simple explanation for the fact that his DNA was not present and someone else's DNA was present in more than one sample is that Mr. Malkinson was innocent. Putting it another way, trying to explain a lack of evidence by the alleged perpetrator's being forensically aware is dubious at best.
You are of course taken the 'forensically aware' a step too far? Someone having the sense to know that traipsing bloodied footwear, or washing off blood at home could leave forensics traces, is said to be 'forensically aware' LM making a choice not to do this does not equate to him having extensive knowledge, it is basics, of which he had a good grasp. So yes, he was forensically aware. Applying such to himself when stating 'they wanted me over the wall to get my DNA there'
That's the good old thing when working blind around multiple claims, as in seeing absolutely nothing of forensic reports but are quick to slate, on the basis of claims being made by those promoting bias in favour of LM's innocence?
All you do know for now that is fact, it the non erecting of a tent in those first hours along with a coroner unable to enter via the V break. The rest as per is unsubstantiated claims.
LM's defence applied that generic material of LM's found upon the victim, could be innocently explained away, not and never that there was absolutely nothing found. That is the difference with the AM case. It has never been that there was nothing of his at all. That is the clear difference in looking for something in any re-testing of the samples. But as it stands, there was nothing found that could not be innocently explained away. That there was nothing found pointing this murder elsewhere, to that of a stranger, a another.