One thing to remember about the various dna companies is that some offer testing and processing and others don't. Ancestry and 23&Me sell kits and will process/analyze data and produce a profile that is uploaded on their site. That's why they're the most locked-down. Your kit is yours and protected unless there's a successful court order.
GEDmatch and it appears Othram (don't know for sure, just from browsing the Othram site) don't offer testing/processing. You take your already completed profile and willingly upload it to these sites. GEDmatch allows you to compare your dna kit to people who have tested at other sites--like an Ancestry kit vs a 23&Me kit. They have a lot of dna tools as well for more advanced researchers and ancestor projects, etc. At GEDmatch you're given the choice to allow it to be used for law enforcement or not.
Just based on the defense saying they don't intend to call the IGG experts at trial (and common sense) I think the defense will try to steer clear of anything dna related, including IGG. Their only reason for bringing this in now is to get the dna thrown out. Once it's in, they have no reason to challenge any of it at trial. The prosecution didn't use it for the PCA so I doubt they'll bring it in. If the dna isn't thrown out, we likely don't see IGG until appellate unless the defense figures out a way to use IGG to cast doubt on the dna match results. If they're reading this thread, though, maybe they're seeing that could work lol.
Well, let me be 100% honest. They didn't need to stay clear of IGG, but it so happened.
At the horrible CS, LE found DNA that might have been the killer's. What I think happened next - and I am not accusing anything - I am just trying to imagine. Pure imagination.
Owing to GSK group unyielding hard work coupled with no less unyielding self-promotion, GSK is behind bars, but people stopped trusting Gedmatch. TBH, DNA criminology was used before, since early 2000s. But those articles about how the GSK hunters made a profile, loaded into Gedmatch to compare with ours...Predictably, users got scared. All of it was published at the wrong time, too. People got paranoid. Many had strong views about LEO. As the result, Gedmatch's huge comparison database shrank overnight.
Now, several things happened afterwards. Gedmatch used to be an enthusiasts' haven. Now it is bought by some company, it became paid, and you can use it for yourself or you can opt into LE comparison database, too. If you want. Or, you do nothing and it means you opt-out.
I personally opted in. Our police is overwhelmed, our state is known for SKs, some of "DNAs" under my care agreed, some not; given how many people have disappeared here, I think i did the right thing.
Now imagine this. The profile of alleged Idaho 4 killer has been compared to the DNAs opted in. Imagine the hits were so few or so remote, they couldn't work with them. Won't there be a temptation to compare the DNA with the whole database, opted in and out? Surely. Just to see what to do afterwards.
And imagine there is a hit. Meaning, someone bought DNA kit, did all tests, got results, downloaded into Gedmatch, opted out.
It is only my theory.
To remind, the hit is with some relative of a perverse, scary, broken criminal, who killed four people for nothing. And - he was getting Ph.D. in criminology, in my state. Someone we can't even allow to be on the streets because he has smelled the blood. Now LE know who he is, and think they can pull together the case on all other clues. Bypassing the DNA.
Wish them luck, pulling it together. I think the true problem is weak PCA. I hope LE can make a good job of it. They could've done it without DNA, now they need DNA to prove but it is unusable. They'd explain how come, only place in the house, or maybe not only. They'd make a good case. But they can't use the DNA. Why - I don't know. I have one version, maybe it was something else.
Where I think it will all go? This guy - to prison. Eventually. What to do with DNA criminology is a serious issue. Give LEO and FBI group money, have them meet with the Interpol, make a worldwide group. Hire very good lawyers and unify the rules. Talk to people. Explain why. (People here know my views - liberal; but i am tired of the money spent on some a$$... you know, when we probably will see Postcovid rise in suicides, homicides and mental illness). Legalities should be stronger. At the same time, genetic criminology is like fingerprints.
On the mainstream social media, there are questions indicating people never tested themselves. I can't imagine planting DNA in a zip file onto the crime scene, but I can imagine misusing it, potentially, because it is easy to steal someone else's used napkin. This needs to be discussed, eventually.