[1] The courthouse is one of a number of locations for the Alameda County Superior Court system.

It contains 20 court departments, the Alameda County sheriff and marshal's substation, and District Attorney offices.

It is the largest full-service courthouse in Alameda County, hearing criminal, civil, juvenile, family law, and Proposition 36 drug court cases.

[5] Judges serving at the Hayward Hall of Justice include Delbert Gee, and formerly Robert Fairwell.

Fairwell was the second oldest seated judge in California at the time of his retirement in 2007, after serving more than 40 years.