Does a mandatory collection of biological samples from an adult felony arrestee for DNA testing and analysis violate the Fourth Amendment of the federal Constitution?

Applying the "totality of the circumstances" test, balancing the intrusion of the challenged search on privacy interests against its promotion of legitimate governmental interests (People v. Samson, supra, 547 U.S. at p. 848), we conclude the compulsory collection of biological samples from all adult felony arrestees for DNA testing and analysis, as authorized by the 2004 Amendment to the DNA Act, does not violate the Fourth Amendment to the federal Constitution.

1. Intrusion on felony arrestees' privacy interests