Wis. Stat. § 51.48: Alcohol and other drug testing, assessment, and treatment of minor without minor’s consent.

A minor’s parent or guardian may consent to have the minor tested for the presence of alcohol or other drugs in the minor’s body or to have the minor assessed by an approved treatment facility for the minor’s abuse of alcohol or other drugs according to the criteria specified in s. 938.547 (4). If, based on the assessment, the approved treatment facility determines that the minor is in need of treatment for the abuse of alcohol or other drugs, the approved treatment facility shall recommend a plan of treatment that is appropriate for the minor’s needs and that provides for the least restrictive form of treatment consistent with the minor’s needs. That treatment may consist of outpatient treatment, day treatment, or, if the minor is admitted in accordance with s. 51.13, inpatient treatment. The parent or guardian of the minor may consent to the treatment recommended under this section. Consent of the minor for testing, assessment, or treatment under this section is not required.