Without witnesses.

One who witnesses.

plural of witnesser

A government program that provides new identities and protection for witnesses who come forward and testify in court against dangerous targets.

Capable of being witnessed; observable.

plural of witness mark

A scratch or similar mark on each portion of an assembly used to determine the previous position or location of its parts.

(law) A witness that has expertise in a certain field.

(law) A witness called to give evidence with respect to the reputation, conduct or moral standing of a party.

(law) A person with information alleged to be material concerning a criminal proceeding, and who therefore may be detained to insure their participation in such a proceeding.