Illinois Private Detective License Exam 200+ Practice
Questions with Detailed Rationales (2026 Latest Exam
Update 2026
Table of Contents
Part I: Regulatory Framework & Licensing (Questions 1–40)
● Chapter 1: The Private Detective Act and IDFPR
● Chapter 2: Licensing Qualifications and Application
● Chapter 3: Agency Licensing and Operations
Part II: Training, Firearms & Employee Requirements (Questions 41–75)
● Chapter 4: Basic and Annual Training
● Chapter 5: Firearms and Use of Force
● Chapter 6: Registered Employees and PERC Cards
Part III: Legal Authority & Criminal Law (Questions 76–120)
● Chapter 7: Criminal Statutes and Investigative Powers
● Chapter 8: Surveillance, Privacy, and Eavesdropping
● Chapter 9: Evidence, Documentation, and Report Writing
Part IV: Professional Conduct & Discipline (Questions 121–160)
● Chapter 10: Prohibited Acts and Grounds for Discipline
● Chapter 11: Professional Ethics and Standards
● Chapter 12: Insurance, Records, and Compliance
Part V: Investigative Practices & Procedures (Questions 161–200+)
● Chapter 13: Investigative Techniques and Case Management
● Chapter 14: Specialized Investigations
● Chapter 15: 2026 Updates and Recent Changes
,Part VI: Answer Key & Rationales
Part I: Regulatory Framework & Licensing
Chapter 1: The Private Detective Act and IDFPR
1. Which Illinois statute primarily governs the licensing of private detectives in
the state?
A) The Freedom of Information Act
B) The Illinois Human Rights Act
C) The Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and
Locksmith Act of 2004
D) The Illinois Criminal Code of 2012
Correct Answer: C) The Private Detective, Private Alarm, Private Security,
Fingerprint Vendor, and Locksmith Act of 2004
Rationale: The Private Detective, Private Alarm, Private Security, Fingerprint
Vendor, and Locksmith Act of 2004 (225 ILCS 447) is the primary statute
governing private detective licensure in Illinois.
2. What is the statutory citation for the Act governing private detective licensure
in Illinois?
A) 775 ILCS 5
B) 720 ILCS 5
C) 225 ILCS 25
D) 225 ILCS 447
Correct Answer: D) 225 ILCS 447
Rationale: The Act is codified at 225 ILCS 447. The other citations refer to the
Illinois Human Rights Act (775 ILCS 5), the Illinois Criminal Code (720 ILCS 5), and
other unrelated statutes.
,3. Which state agency administers and enforces the Private Detective, Private
Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004?
A) The Illinois State Police
B) The Illinois Secretary of State
C) The Illinois Attorney General's Office
D) The Illinois Department of Financial and Professional Regulation (IDFPR)
Correct Answer: D) The Illinois Department of Financial and Professional
Regulation (IDFPR)
Rationale: The IDFPR's Division of Professional Regulation holds primary licensing
and regulatory authority for private detectives under 225 ILCS 447.
4. Under the 2004 Act, what term does Illinois law use in place of "private
investigator"?
A) Field agent
B) Licensed examiner
C) Private detective
D) Case officer
Correct Answer: C) Private detective
Rationale: Illinois law uses the term "private detective" rather than "private
investigator." This is consistent throughout the Act and in all licensing materials.
5. Which of the following license categories is NOT created under 225 ILCS 447?
A) Private alarm contractor
B) Notary public
C) Private detective
D) Locksmith
Correct Answer: B) Notary public
Rationale: The Act creates licenses for private detectives, private alarm
contractors, private security contractors, fingerprint vendors, and locksmiths.
Notary public is regulated under a separate statute.
, 6. What review process periodically evaluates whether the Private Detective Act
should continue in force?
A) The Illinois Regulatory Sunset Act review
B) A county board referendum
C) A federal GAO audit
D) A biennial gubernatorial veto review
Correct Answer: A) The Illinois Regulatory Sunset Act review
Rationale: The Act is subject to the Illinois Regulatory Sunset Act. The current Act
is scheduled to be repealed on January 1, 2029.
7. Which of the following best describes the general purpose of licensing under
this Act?
A) To replace the need for local police departments
B) To generate general revenue for county governments
C) To protect the public by ensuring minimum competency, character, and
accountability standards for investigative and security service providers
D) To limit the number of investigators regardless of qualification
Correct Answer: C) To protect the public by ensuring minimum competency,
character, and accountability standards for investigative and security service
providers
Rationale: The Act is designed to protect the public by establishing minimum
standards for competency, character, and accountability in the investigative and
security industries.
8. A private detective agency licensed under the Act may also be referred to in
the statute as what?
A) A licensed bureau
B) A bonded contractor
C) A private detective agency
D) A registered corporation
Questions with Detailed Rationales (2026 Latest Exam
Update 2026
Table of Contents
Part I: Regulatory Framework & Licensing (Questions 1–40)
● Chapter 1: The Private Detective Act and IDFPR
● Chapter 2: Licensing Qualifications and Application
● Chapter 3: Agency Licensing and Operations
Part II: Training, Firearms & Employee Requirements (Questions 41–75)
● Chapter 4: Basic and Annual Training
● Chapter 5: Firearms and Use of Force
● Chapter 6: Registered Employees and PERC Cards
Part III: Legal Authority & Criminal Law (Questions 76–120)
● Chapter 7: Criminal Statutes and Investigative Powers
● Chapter 8: Surveillance, Privacy, and Eavesdropping
● Chapter 9: Evidence, Documentation, and Report Writing
Part IV: Professional Conduct & Discipline (Questions 121–160)
● Chapter 10: Prohibited Acts and Grounds for Discipline
● Chapter 11: Professional Ethics and Standards
● Chapter 12: Insurance, Records, and Compliance
Part V: Investigative Practices & Procedures (Questions 161–200+)
● Chapter 13: Investigative Techniques and Case Management
● Chapter 14: Specialized Investigations
● Chapter 15: 2026 Updates and Recent Changes
,Part VI: Answer Key & Rationales
Part I: Regulatory Framework & Licensing
Chapter 1: The Private Detective Act and IDFPR
1. Which Illinois statute primarily governs the licensing of private detectives in
the state?
A) The Freedom of Information Act
B) The Illinois Human Rights Act
C) The Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and
Locksmith Act of 2004
D) The Illinois Criminal Code of 2012
Correct Answer: C) The Private Detective, Private Alarm, Private Security,
Fingerprint Vendor, and Locksmith Act of 2004
Rationale: The Private Detective, Private Alarm, Private Security, Fingerprint
Vendor, and Locksmith Act of 2004 (225 ILCS 447) is the primary statute
governing private detective licensure in Illinois.
2. What is the statutory citation for the Act governing private detective licensure
in Illinois?
A) 775 ILCS 5
B) 720 ILCS 5
C) 225 ILCS 25
D) 225 ILCS 447
Correct Answer: D) 225 ILCS 447
Rationale: The Act is codified at 225 ILCS 447. The other citations refer to the
Illinois Human Rights Act (775 ILCS 5), the Illinois Criminal Code (720 ILCS 5), and
other unrelated statutes.
,3. Which state agency administers and enforces the Private Detective, Private
Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004?
A) The Illinois State Police
B) The Illinois Secretary of State
C) The Illinois Attorney General's Office
D) The Illinois Department of Financial and Professional Regulation (IDFPR)
Correct Answer: D) The Illinois Department of Financial and Professional
Regulation (IDFPR)
Rationale: The IDFPR's Division of Professional Regulation holds primary licensing
and regulatory authority for private detectives under 225 ILCS 447.
4. Under the 2004 Act, what term does Illinois law use in place of "private
investigator"?
A) Field agent
B) Licensed examiner
C) Private detective
D) Case officer
Correct Answer: C) Private detective
Rationale: Illinois law uses the term "private detective" rather than "private
investigator." This is consistent throughout the Act and in all licensing materials.
5. Which of the following license categories is NOT created under 225 ILCS 447?
A) Private alarm contractor
B) Notary public
C) Private detective
D) Locksmith
Correct Answer: B) Notary public
Rationale: The Act creates licenses for private detectives, private alarm
contractors, private security contractors, fingerprint vendors, and locksmiths.
Notary public is regulated under a separate statute.
, 6. What review process periodically evaluates whether the Private Detective Act
should continue in force?
A) The Illinois Regulatory Sunset Act review
B) A county board referendum
C) A federal GAO audit
D) A biennial gubernatorial veto review
Correct Answer: A) The Illinois Regulatory Sunset Act review
Rationale: The Act is subject to the Illinois Regulatory Sunset Act. The current Act
is scheduled to be repealed on January 1, 2029.
7. Which of the following best describes the general purpose of licensing under
this Act?
A) To replace the need for local police departments
B) To generate general revenue for county governments
C) To protect the public by ensuring minimum competency, character, and
accountability standards for investigative and security service providers
D) To limit the number of investigators regardless of qualification
Correct Answer: C) To protect the public by ensuring minimum competency,
character, and accountability standards for investigative and security service
providers
Rationale: The Act is designed to protect the public by establishing minimum
standards for competency, character, and accountability in the investigative and
security industries.
8. A private detective agency licensed under the Act may also be referred to in
the statute as what?
A) A licensed bureau
B) A bonded contractor
C) A private detective agency
D) A registered corporation
