As red-flag laws again take center stage in the statists’ interminable gun control drama, many Second Amendment advocates seem to have dozed off. Objections to red-flag laws have been limited to ex parte hearings and surprise firearm confiscation. But red-flag laws mangle due process in even more violent ways.

Fortunately, the Vagueness Doctrine is most likely to prevail when an ambiguous law threatens a constitutional right, such as free speech or the right to keep and bear arms (see, for example, Smith v. Goguen).

Red-flag laws fly under our constitutional radar and rely on the public’s willingness to sacrifice essential liberty for a tiny gain in safety (Benjamin Franklin cautioned against this folly in 1775). Seventeen states already have enacted red-flag laws, and bills are on the move in at least six more states. In all cases, essential due process is a casualty.