When and where the trials are held, piecing together records of which "agent" was where despite Trump's cronies having ICE not identify themselves, and wear mas

When and where the trials are held, piecing together records of which "agent" was where despite Trump's cronies having ICE not identify themselves, and wear masks. By the way, wasn't wearing N95 masks crippling in 2020? ICE wears masks now without complaint. What changed?