My guesses for the raid...
DMAA - Instead of going after Hi-Tech who has the money to fight, and maybe still in court with the FDA over DMAA(IDK), they are raiding easier targets.
Sarms - Pretty sure BSL sells sarms, and possibly sold prohormones labeled as sarms, or so the rumor goes.
Prohormones - Possibly they are raiding easy targets in the first step to banning 2-step DHEA derivatives. Again, possibly avoiding Hi-Tech atm.
Old product - could have sold recalled old products out the backdoor, and were dumb enough to keep records, or sell to an undercover.
Mislabeling - We all know this happened.
Hate FDA raids and shady conpanies. Bad for the undustry, But I am glad to see BSL go. I didnt like them from day one. Way before the **** hit the fan. Just always seemed shady.