I don’t have a source, but I’ve been hearing for a while now that there is a lot of pseudo science in matching barrels to bullets.
Polygraphs ended up being pretty much complete bullshit and roadside drug tests are real bad about false positives.
IDK, it’s basically a tool mark. I’ve looked at those under microscopes. They vary a whole lot when things are running well. I would think you could only really match something if there was a distinctive abnormal feature.
I don’t have a source, but I’ve been hearing for a while now that there is a lot of pseudo science in matching barrels to bullets.
Polygraphs ended up being pretty much complete bullshit and roadside drug tests are real bad about false positives.
IDK, it’s basically a tool mark. I’ve looked at those under microscopes. They vary a whole lot when things are running well. I would think you could only really match something if there was a distinctive abnormal feature.