Detecting behaviors to assess what though? Isn't that exactly what a lie detector does? It claims to detect electrical signals of behaviors (stress) and then that goes to determine if the person is honest.
A lie detector does (claim to) not detect facts. It (claims to) detect psychological states via its physiological measurements, which is obviously what the law is talking about.
No one would claim that fact-checking statements is a "lie detector" under this law.
No one would claim that fact-checking statements is a "lie detector" under this law.