Juvenile court hearings shall be held at a special session of the court for that purpose and each case shall be heard separately, except that two or more cases may be heard together in the following instances:\n(1) Cases involving violations of motor vehicle laws or ordinances where none of the cases involves death or serious injury to persons.\n(2) Cases arising in whole or in part out of a single transaction or series of related transactions. [1993 c.33 §201]
Oregon Legal Code