Whether compelling Gilbert to provide handwriting exemplars violated the Fifth Amendment privilege against self-incrimination.
Holding
No. A handwriting exemplar, as distinct from the content of what is written, is identifying physical evidence rather than compelled testimonial communication.
Reasoning
The Fifth Amendment protects an accused from being compelled to communicate testimonial information. It does not generally prevent the government from compelling an accused to serve as the source of physical or identifying evidence, such as blood samples, voice characteristics, or bodily features.
Although handwriting is a means of communication, a bare exemplar reveals the physical characteristics of a person's writing rather than the truth of any assertion. Gilbert did not contend that the words or substantive content of his exemplars were themselves testimonial or incriminating communications.