Many constitutional rights have qualifications, and "the law" is both statutory and based on case law. You don't have a constitutional right to a trial by a jur

Many constitutional rights have qualifications, and "the law" is both statutory and based on case law. You don't have a constitutional right to a trial by a jury of your peers for non-serious crimes. A serious offense is generally one with a potential penalty of more than 6 months in jail. Baldwin v New York is one case where this was tested.