If any person summoned fails without reasonable cause to appear, he or she may be proceeded against for contempt of court. In case the summons cannot be served or the parties served fail to obey the same, or in any case when it appears to the court that the service will be ineffectual a capias may be issued for the parent or guardian or for the child. Subchapter IV governs the taking and holding of a child in custody.
Wis. Stat. § 48.28
The issuance of a capias to secure the physical attendance of a juvenile prior to the service of the summons and petition on the juvenile was error but did not deny the court personal jurisdiction. Interest of Jermaine T.J., 181 Wis. 2d 82, 510 N.W.2d 735 (Ct. App. 1993).