725 ILCS 5/107-11: When summons may be issued.

(a) When authorized to issue a warrant of arrest, a court may instead issue a summons.

(b) The summons shall:

(1) Be in writing;

(2) State the name of the person summoned and his or her address, if known;

(3) Set forth the nature of the offense;

(4) State the date when issued and the municipality or county where issued;

(5) Be signed by the judge of the court with the title of his or her office; and

(6) Command the person to appear before a court at a certain time and place.

(c) The summons may be served in the same manner as the summons in a civil action or by certified or regular mail, except that police officers may serve summons for violations of ordinances occurring within their municipalities.