The police couldn't compel you to reveal secrets (all or some) and a password is a such a secret. But your face is not. Should the judge say: Because the face

The police couldn't compel you to reveal secrets (all or some) and a password is a such a secret. But your face is not. Should the judge say: Because the face could be used for a task that is often performed using a secret, it is a secret in the sense of the law?