I really don't want to go into details for obvious reasons, but I was close with someone who was called frequently for cases regarding sampled music with some pretty big stakes and could speak with a lot of perceived (and honestly, well earned) authority. He would show an FFT analysis and time waveform and say "See? they look nothing alike". I pointed out that it's pretty easy for things to look completely different on FFT and waveforms but be the same sound. I got the sense it was a pretty lucrative side hustle. This was many years ago and I don't think the problem has gotten any better.
Every few years I teach a kind of super-basic stats (plus some python) class to law students mostly for the purpose of equipping them with the tools to notice that expert witnesses are lying to them.
