PEOPLE OF THE PHILIPPINES, Plaintiff-Appellee, vs. JOSELITO YU y RANA, Accused-Appellant. G.R. No. 131822 . January 29, 2002.

DOCTRINE: The constitutional right against self-incrimination is a prohibition against the use of physical or moral compulsion to extort communications from a person, but it does not prohibit the taking of his body or substances therefrom as evidence when it may be material. A person may be compelled to submit to fingerprinting, photographing, paraffin testing, and other similar means of identification without violating their right against self-incrimination.

FACTS

1. Joselito Yu y Rana was charged with the crime of Robbery with Homicide for the killing of a taxi driver and the taking of his earnings.
2. During the investigation, police officers requested Yu to submit to a paraffin test. Yu initially refused but later agreed and signed a written request for the test.
3. The paraffin test yielded a positive result for nitrates on Yu’s right hand.
4. At trial, the prosecution presented the paraffin test result as evidence. Yu objected, claiming it was obtained in violation of his constitutional right against self-incrimination under Section 17, Article III of the 1987 Constitution .
5. The trial court convicted Yu of Robbery with Homicide and sentenced him to reclusion perpetua. Yu appealed, reiterating his constitutional objection to the paraffin test evidence.

ISSUE

Whether the paraffin test conducted on the accused, and the results thereof presented as evidence, violate his constitutional right against self-incrimination.

RULING

NO. The Supreme Court affirmed the conviction and held that the paraffin test did not violate Yu’s right against self-incrimination.

The Court explained the distinction between testimonial compulsion and real or physical evidence. The constitutional right against self-incrimination applies only to testimonial evidencei.e., communications or testimony that comes from the accused, where he is forced to express the contents of his own mind. It is a protection against coercive extraction of knowledge from the accused.

A paraffin test is a form of real or physical evidence. It involves the removal of substances (paraffin casts) from the body of the accused for scientific examination. This process does not involve any testimonial act or communication from the accused; it is merely a mechanical extraction of physical evidence. The right against self-incrimination is not a bar to compelling a person to submit to physical examination, such as fingerprinting, photographing, measurement, urine or blood tests, or the removal of paraffin casts from the skin.

The Court further noted that Yu had voluntarily signed a request for the test, negating any claim of compulsion. Even without such consent, however, the police could have legally compelled him to undergo the test, as it did not force him to be a witness against himself in a testimonial sense.

Thus, the paraffin test results were admissible in evidence, and the conviction was upheld.