'Best practice' does not mean 'mandatory' simply ideally the preferred one in a situation. You'll note the use of the advisory word, 'should', which is conditional. In the real world, 'best practice' is not always possible.
More nonsense. What do you think ENFSI is? It's ALL a series of documents specifying best practices, which everyone should follow. And yes, in the passage cited, one can violate the BPM guidelines, but only when there are "exceptional circumstances". Wanting to fit the knife in a calendar box is not an "exceptional circumstance".
With the knife in RS' drawer, which was 'extra shiny' and stood out as being of the approximate right size they were looking for and suspiciously shiny clean - and bleach would have destroyed the hema rings of any blood thereon - the only wrapping available was a new calendar wrapper, in which the knife was placed.
I have to be honest, Vixen.. this is what annoys the crap out of me about you. You know damn well you do NOT remove a possible murder weapon from a sterile collection bag and risk contamination because you want it to fit in a cardboard box. Just leave the freakin knife in it's collection bag, AS SPECIFIED by ENFSI, and allow the lab tech to remove it. They are the ONLY ONES qualified to do that. But you'd rather spew lengthy paragraphs of nonsense than just admit it was a massive violation of ENFSI standards.
And note, you claimed they do follow ENFSI, and then when I prove to you they didn't, you try this ridiculous argument of what 'should' means.
There is no way Mez' DNA can have come from that nor anywhere in RS' appartment because she had never been there.
It's not up to YOU to determine whether contamination can happen. Do you think it's acceptable behavior for a forensic CSI team to violate procedures and protocols designed to minimize the risk of contamination and later claim "there's no way it got contaminated"? Contamination, especially when we're talking about BELOW LCN levels, can happen at any time. This is why there are entire manuals dedicated to the profession of avoiding contamination. Apparently you think this effort is a complete waste of time because contamination never happens.
RS did write in his prison diary that she had been there and that he had pricked her hand with his knife (so as to explain it to whomever). which was a clear lie as she had never been there and nor had she ever cooked with him. As for the alleles, as I said before, a crime scene is not sterile, those would have been background noise. Who knows where they came from, perhaps Mez' bra was new out of the packet and had all kinds of sundry other DNA fragments from the factory and machinists, etc.
Let's try again...
There were a total of 72 peaks on the bra clasp OVER 50 RFU. 60 of those 72 belonged to Meredith, Raffaele, or both, and the other 12 did not. Now, WHY do you think
those particular 12 were not in the RTIGF??? It WASN'T because they were below 50 RFU. It WASN'T because they were in stutter position. No, the ONLY REASON they were left off is because they did NOT belong to Meredith or Raffaele, and THAT, by it's very definition, is suspect centric.
What you SHOULD (there's that word again) do is report ALL alleles found and allow the court and the experts to debate what they all mean. You wrote "who knows where they came from"... but WHO decided these 12 alleles should be considered of questionable origin and should therefore not be in the RTIGF, and what was the justification for THESE PARTICULAR 12 alleles if not because they weren't in Meredith or Raffaele's profile?
As for the knife, if you quantify a sample and get multiple "Too Low" readings, meaning no DNA is present or there is insufficient DNA to get a reliable profile, you should file the sample away as negative, just like she did with sample 36C. Stefanoni didn't do this. And if you do amplify it, and you're not getting anything, you don't continue to amplify it beyond manufacture limits, just to get something. And when you finally start seeing something, you still stick to the rules of forensic DNA, such as adhering to the 50 RFU threshold. 22 of the alleles were WELL below the 50 RFU threshold. If she wasn't suspect centric she would have discarded anything under 50, especially when almost the entire profile was below this limit, but she was specifically looking for Meredith's profile, so she ignored the threshold, literally reporting on a peak of 11 !!!!
You DO NOT pick and choose what rules you'll adhere to and which you'll ignore, based on whether it's evidence that supports your position or not. This is what ANY competent forensic investigator would tell you, and I truly believe you know this, but you're so heavily invested in Amanda's guilt that you'd deny the sun is hot if it meant she was innocent.
A forensic expert for the police is looking to build a case against a suspect, in this case Sollecito, so of course, Stefanoni was looking for alleles for MK, AK, RS and RG, plus any other likely suspect. You recall, Sollecito got his cellmate Aviello to claim it was his brother and a child killer who had committed the murder. Doesn't sound like RS had a clear conscience.
Finally, you admit it, though I'm sure you didn't mean to. No, a forensic expert for the police is looking for evidence that will identify a suspect, you don't determine who your suspect is and then look for evidence to be used agains them. But hey, maybe this is your problem, you just don't understand how a proper investigation should be handled.