They have got to test DNA in and around the scene. We're not talking about every surface in a home. I strongly disagree with you here. If they had the forethought to collect it - and they found DNA on it, they have to test it. Sorry. jmo
This case was dismissed precisely because they didn't test it and of that tested, they didn't turn it over - and I think they didn't turn it over bc after getting a horror hit, they wanted a see no evil, hear no evil, stance. But, that ship has sailed. They have been warned. Not sure if you practice but I don't think it's a good idea to go into court and arm a defendant with ammunition of 20 or so other unknown sources of DNA in or around the scene. Because this is what you will have to do. It's no different from the rule of "Don't ask a question you don't already know the answer to." They need to be prepared, to even draw the sting in their opening, if necessary. They need to have some sort of response.
This is slightly different than Idaho imo in that in Idaho, they've been openly battling about some (3) unknown sources of DNA for some time now with the court being fully read-in on it.
jmo
Test it to do what with it?
Truly curious. I'm trying to imagine testing all the DNA that was found in the Idaho Massacre home at 1122 King in Moscow, ID (the Kohberger case). Or testing all the DNA that would be found at Puma Path. What is the point of that? What do they do with it after they test it?
Are people really expecting every single person that's ever been at a locale to be inspected and matched to DNA found at that locale? And if not everyone can be located (most won't be without IGG), what then? What is the point?
I'm not getting it at all. Even partial DNA? That could be a composite of several people?
Maybe people don't realize that you could probably eventually find 1000 potential donors of that partial DNA - with about 1-3 years of work by a team of Ph.D.'s with great medical equipment. We don't even have enough of those to provide top notch medical care to every citizen. It wouldn't stop with murder trials - it would be all major crimes. Would we let all the suspects out while this got done or keep potentially innocent people in jail while we testing all this? Crime investigations would routinely take YEARS longer (until we get a complete database of every human's DNA, which doesn't seem to be happening very quickly). Partial DNA can point to a pile of traits, but not to an identity of a person. It's like saying "oh, there are fingerprints, let's go look at ALL people's fingerprints until we find the match." Everyone has to march down to the fingerprint place, everyone has full sets taken and stored.
Except that fingerprints are easier to match. What a cumbersome system. There has to be other evidence that a person is involved a crime. DNA alone is not enough.
Do people not realize that their OWN DNA is in most places they've ever been? And that it persists for centuries? Sure, it can be degraded with chemicals, but most surfaces do not have those chemicals applied and even then, you would get PARTIAL DNA again! The little A, C, T and G pairs might survive bleach or hydrogen peroxide (just scrambled a bit - IOW, PARTIAL DNA again).
What investigation into stranger DNA in Idaho? I think I must be missing your point and am truly sorry. I am very familiar with the Kohberger case and wish there was an "open battle." There isn't. There may be. But it was a FULL MATCH. All 23 pairs of chromosomes present and accounted for. How is that anything like this case?
Bryan Kohberger's cheek swab 100% matched the DNA found on the knife sheath (of which there was enough to get more than one sample - although there wasn't a heck of a lot of it, it only takes one set of chromosomes - which was present on more than one swab of the use point of the sheath).