Process Server Laws in Illinois

725 ILCS 5/107-9

In Illinois, criminal arrest warrants are executed exclusively by law enforcement officers. Under 725 ILCS 5/107-9, an arrest warrant may be executed by any peace officer in Illinois. Private process servers have no authority to execute criminal arrest warrants. The warrant must be directed to all peace officers of the State of Illinois.

725 ILCS 5/115-17; 735 ILCS 5/2-202

Criminal subpoenas in Illinois are governed by 725 ILCS 5/115-17 and Supreme Court Rule 237. A subpoena may be served by any person who is at least 18 years of age and not a party to the action. Service is made by personal delivery or by leaving a copy at the person's usual place of abode with a family member or resident 13 years or older. Private process servers and licensed private detectives under 225 ILCS 447/ may serve criminal subpoenas.

725 ILCS 5/107-4; 735 ILCS 5/2-202

A criminal summons in Illinois may be issued in lieu of an arrest warrant for certain offenses. The summons is served by delivering a copy to the defendant personally. Service is typically by a sheriff or other peace officer. Under 725 ILCS 5/107-4, a summons may issue for misdemeanors and business offenses. If the defendant fails to appear after service, the court may issue an arrest warrant.

725 ILCS 5/112-4; 735 ILCS 5/2-202

Grand jury subpoenas in Illinois may be served by any person authorized to serve civil subpoenas, including private process servers appointed under 735 ILCS 5/2-202 and licensed private detectives. Service must be personal delivery to the witness. A witness subpoenaed before a grand jury is entitled to witness fees and mileage as in civil cases.

735 ILCS 5/2-203; Sup. Ct. Rule 102(d)

In Illinois, the person serving criminal process must file proof of service with the court. For subpoenas, proof is by affidavit of the server showing date, time, place, and manner of service. The return must be filed promptly. For sheriff service, the sheriff endorses the return on the summons or warrant and files with the clerk. Supreme Court Rule 102(d) requires returns to be filed at least 21 days before the appearance date.

750 ILCS 5/602.5; 750 ILCS 36/; 735 ILCS 5/2-203

Since 2016, Illinois uses the term "allocation of parental responsibilities" rather than custody. Actions are filed in Circuit Court under 750 ILCS 5/602.5 et seq. Service follows standard 735 ILCS 5/2-203 methods. Illinois adopted the UCCJEA under 750 ILCS 36/ for interstate jurisdiction. The respondent has 30 days to answer after service. Out-of-state parties may be served by any method authorized in the state where served.

750 ILCS 5/; 735 ILCS 5/2-202, 5/2-203

Dissolution of marriage (divorce) actions in Illinois are filed in Circuit Court under the Illinois Marriage and Dissolution of Marriage Act (750 ILCS 5/). Service of the petition and summons follows 735 ILCS 5/2-203 — personal delivery, substitute/abode service (leaving copy at usual place of abode with any family member or resident 13 or older, plus mailing), or service by publication under 735 ILCS 5/2-206. The respondent must file an answer within 30 days after service. Servers must be appointed by the court under 735 ILCS 5/2-202 or be licensed private detectives.

705 ILCS 405/2-15; 735 ILCS 5/2-203

Juvenile cases in Illinois are handled by the Juvenile Court division of Circuit Court under the Juvenile Court Act (705 ILCS 405/). Summons in abuse, neglect, and dependency proceedings must be served personally on the minor's parent, guardian, or custodian, and on the minor if 10 years of age or older. Service is by personal delivery or by leaving a copy with a person 13 or older at the dwelling plus mailing. Service follows 735 ILCS 5/2-203. If service cannot be completed, the court may authorize service by publication.

750 ILCS 60/210, 60/222; 735 ILCS 5/2-202

Orders of protection in Illinois are governed by the Illinois Domestic Violence Act (750 ILCS 60/). The court may issue an emergency order of protection ex parte. The order and petition must be served personally on the respondent by a sheriff, other law enforcement officer, or special process server appointed under 735 ILCS 5/2-202. Service must be completed before the hearing date. If the respondent was not served, the court may continue the emergency order for up to 21 days to allow additional time for service.

Rule 102

735 ILCS 5/2-203(a)(1) (personal delivery) and Supreme Court Rule 102; full service on individuals at 735 ILCS 5/2-203

In Illinois, process may be served by a sheriff or a licensed private detective, or by any person who is at least 18 years old and appointed by the court (735 ILCS 5/2-202). Personal service is made by leaving a copy with the defendant personally. Illinois also allows service by certified or registered mail in certain cases.

755 ILCS 5/18-3, 5/18-12

Under the Illinois Probate Act (755 ILCS 5/), the representative must publish notice to creditors once a week for three successive weeks in a newspaper of general circulation in the county where the estate is being administered. Known or reasonably ascertainable creditors must also be given actual notice by mail. Claims must be filed within six months after the first publication of notice or be barred. The representative files proof of publication and mailing with the court.

755 ILCS 5/11a-10; 735 ILCS 5/2-203

Guardianship of disabled adults in Illinois is governed by 755 ILCS 5/11a. The petition must be served personally on the alleged disabled person at least 14 days before the hearing. Notice must also be given to the person's spouse, parents, adult children, and other interested parties. The court appoints a guardian ad litem to represent the alleged disabled person. Service follows 735 ILCS 5/2-203 methods for all parties except the respondent, who must receive personal service.

755 ILCS 5/8-1; 735 ILCS 5/2-203

Will contests in Illinois must be filed in the Circuit Court where the will was admitted to probate within six months after admission. All interested parties must be served with the contest petition following 735 ILCS 5/2-203 methods — personal delivery, substitute service, or publication. The respondent has 30 days to answer. The petitioner bears the burden of proving the will is invalid due to undue influence, lack of capacity, or improper execution.

735 ILCS 5/2-202

No dedicated process server licensing; must be sheriff, coroner, licensed private detective (225 ILCS 447/ Private Detective Act, IL Dept. of Financial & Professional Regulation), their registered employee, or court-appointed person >18 not party (735 ILCS 5/2-202). Cook Co. $5 fee for detectives

735 ILCS 5/2-202

735 ILCS 5/2-202: Sheriff (civilians in small counties), coroner, licensed/registered private detective or agency employee (no appt needed except Cook fee), court-appointed private person over 18 not party to action

Rule 12(b)(2)

Private persons file affidavit return (735 ILCS 5/2-202); sheriff endorses return. Proof via affidavit certificate under 735 ILCS 5/1-109 (unnotarized, penalty of perjury language) per Supreme Court Rule 12(b)(2). Must file proof per Rule 102(d)

Illinois accepts declarations under 735 ILCS 5/1-109.

Illinois accepts declarations under penalty of perjury per 735 ILCS 5/1-109. The declaration must include the statement that it is made under penalties as provided by law. A notarized affidavit is also accepted but not required. The Mighty Affidavit Generator automatically applies the correct signing method for Illinois.

Illinois has no mandatory form; 735 ILCS 5/1-109 accepts declarations. Summons forms have integrated proof sections.

Illinois does not have a mandatory statewide proof of service form. 735 ILCS 5/2-202 governs service requirements. Standardized summons forms include an integrated "Proof of Service of Summons" section. Eviction cases use E-AD 3513.2 (Affidavit of Service of Demand/Notice). Generic declarations are accepted under 735 ILCS 5/1-109. The Mighty Affidavit Generator automatically selects the correct proof of service template for Illinois and fills it with your job data — no manual form selection needed.

720 ILCS 5/31-3

Yes, misdemeanor: 720 ILCS 5/31-3 - Knowingly resisting or obstructing authorized service of civil or criminal process is a Class B misdemeanor. Additional felony enhancements for aggravated assault/battery on known process servers per Public Act 097-0313

735 ILCS 5/2-203

735 ILCS 5/2-203(a): Employees of gated residential communities, condos, co-ops must grant process servers access to common areas/elements for residents

735 ILCS 5/2-206

735 ILCS 5/2-206 (affidavit of due diligence, newspaper publication 3 weeks, mailing)

735 ILCS 5/2-204

Service on a corporation may be made by leaving a copy with the registered agent or any officer of the corporation.

Rule 204

Illinois Supreme Court Rule 204: Subpoenas issued by clerk or attorney of record; served requiring actual knowledge or per rules; same persons as civil process

735 ILCS 5/2-1301; Sup. Ct. Rule 102(d), 286

In Illinois Small Claims Court (Circuit Court), the defendant must appear on the return date stated in the summons. The return date must be at least 21 days after service under Supreme Court Rule 102(d). If the defendant fails to appear, the court may enter a default judgment. The monetary limit for small claims is $10,000. No formal written answer is required; the defendant responds by appearing.

735 ILCS 5/2-202, 5/2-203; Sup. Ct. Rule 281 et seq.

Small claims actions in Illinois (up to $10,000) are filed in Circuit Court under 735 ILCS 5/2-101 et seq. Service follows standard civil rules under 735 ILCS 5/2-203 — personal delivery, substitute/abode service (copy left with person 13+ at dwelling plus mail), or certified mail. In Cook County, the sheriff handles service for a fee of approximately $60 plus mileage. Court-appointed private process servers under 735 ILCS 5/2-202 may also serve.

No special rules identified; follows general civil service rules under 735 ILCS 5/ Article II, Part 2 (Code of Civil Procedure)

Follows general rules; certified mail via clerk, sheriff, or special process server (Illinois courts small claims forms/guidance)

Rule 102(f)

Cook County (3M+ pop.): Licensed detectives pay $5/service fee to sheriff (735 ILCS 5/2-202(a-3)). Court-ordered alternative service (email/text/social media) under Rule 102(f)/2-203.1. No Sunday/time restrictions. Gated access mandate unique. Detailed identification in proof (sex/race/age/address)

735 ILCS 5/2-203

735 ILCS 5/2-203(a)(2): Leave at abode with family/resident 13+, inform contents, mail copy prepaid

625 ILCS 5/6-306.6; 725 ILCS 5/110-3

If a motorist fails to appear on a traffic citation in Illinois, the court may enter a conviction by default and impose fines. Under 625 ILCS 5/6-306.6, the Secretary of State may suspend the driver's license for failure to satisfy a traffic citation. A $30 reinstatement fee applies. For criminal traffic offenses (DUI, reckless driving), failure to appear may result in a bench warrant for arrest.

625 ILCS 5/16-105; Sup. Ct. Rule 501 et seq.

Illinois traffic violations are governed by the Illinois Vehicle Code (625 ILCS 5/). Traffic citations are issued by the officer at the scene as a uniform traffic ticket (Illinois Uniform Traffic Ticket). The citation serves as both the complaint and summons. The motorist signs the citation acknowledging the promise to appear. No separate process service is required. Non-criminal traffic violations may be handled by mail or online payment.