Nos. 89-2051, 89-2140 and 89-2152. Argued December 5, 1989. Decided October 18, 1990. Reheard En Banc June 11, 1991. Decided September 25, 1991. Fred G. Groiss, Quarles Brady, Milwaukee, Wis., James D. Holzhauer (argued), Mayer, Brown Platt, Chicago, Ill., for petitioners/cross-respondents. Kenneth R. Loebel (argued), Previant, Goldberg, Uelman, Gratz, Miller Brueggeman, Milwaukee, Wis., for intervening respondent, petioner. Steven B. Goldstein, Contempt Litigation Branch, Washington, D.C., Fred
1. A law enforcement officer who has probable cause to believe that a civil violation has been committed by a person must issue or have delivered a written summons to that person directing the person to appear in the District Court to answer the allegation that the person has committed the violation. The summons must include the signature of the officer, a brief description of the alleged violation, the time and place of the alleged violation and the time, place and date the person is to appear in