It is legal to film ICE. The EFF has more.

Recording government agents is one of the few tools citizens have to hold state power accountable. Any attempt to redefine observation as “violence” is not only unconstitutional—it’s authoritarian gaslighting. When a government fears cameras more than crimes, it isn’t protecting the rule of law. It’s protecting itself.

Without the citizen recordings of the killing of Renee Good, the administration’s outright lies would likely be all that we heard about this horrible incident. Recording the authorities is essential.