Definitions
There is 1 meaning of the phrase
Material Witness.
Material Witness - as a noun
A witness whose testimony is both relevant to the matter at issue and required in order to resolve the matter
Example Sentences
"The prosecutor called a material witness to testify in the trial."
"The police officer identified the bystander as a material witness to the crime."
"The defense attorney argued that the material witness was unreliable."
"The court issued a subpoena to compel the appearance of the material witness."
"The material witness was placed under police protection due to threats."