Illinois Private Detective Licensing Exam Prep 2026 | Practice
Questions & Answers with Detailed Rationales Instant Download
Summarized Exam Coverage
Regulatory Framework: Illinois Private Detective, Private Alarm, Private Security, Fingerprint
Vendor, and Locksmith Act (225 ILCS 447) administered by IDFPR; licensing requirements,
qualifications, application procedures, renewal, and restoration provisions .
Licensing Requirements: Minimum age 21, no felony convictions (or 10 years elapsed), good moral
character as continuing requirement, 3 years experience in last 5 years, education credits available
(baccalaureate = 2 years credit, associate = 1 year credit), examination passage required .
Agency Operations: Licensee-in-charge required, temporary certificates of authority (90 days +
extensions), branch office licensing, employee training requirements (20 hours basic within 30 days,
8 hours annual), recordkeeping obligations .
Prohibited Acts & Discipline: Class A misdemeanor for unlicensed practice, impersonating law
enforcement, false advertising, misrepresentation, unlawful use of firearms, failure to maintain
insurance, grounds for discipline including incompetence, dishonorable conduct, felony convictions .
Use of Force & Criminal Law: Reasonable and necessary force standard, deadly force only to prevent
imminent death/great bodily harm, citizen's arrest for felony committed in presence, Illinois criminal
statutes including robbery, burglary, battery, assault .
Surveillance & Privacy: Two-party consent state (Illinois Eavesdropping Act), reasonable expectation
of privacy, curtilage protection, GPS tracking restrictions, public records access, FCRA compliance,
HIPAA considerations .
Firearms Requirements: FOID card and Concealed Carry License required, Firearm Control Card for
on-duty carry, 40-hour training (20 classroom + 20 range), 75% passing score on written exam,
qualification every 2 years .
Evidence & Documentation: Chain of custody requirements, record retention (5 years for training
logs, 180 days for case files), subpoena compliance, report writing standards, confidentiality
obligations .
Exemptions: Government employees performing official duties, genealogists not holding out as
detectives, credit reporting agencies, insurance adjusters, computer forensics specialists not holding
out as detectives .
Continuing Education: 8 hours annual training for licensees, topics reasonably related to practice,
personal training log required, employer certification and record maintenance .
,Section 1: Licensing & Administrative Requirements (Questions 1-50)
1. What is the minimum age requirement to obtain a private detective license in Illinois?
A) 18 years old
B) 21 years old
C) 25 years old
D) No minimum age requirement
Answer: B
The Private Detective, Private Alarm, Private Security Act requires applicants for private detective
licensure to be at least 21 years of age, which is consistent across both detective and security
contractor licensing requirements .
2. Which entity is primarily responsible for issuing private detective licenses in Illinois?
A) Illinois State Police
B) Illinois Department of Financial and Professional Regulation (IDFPR)
C) Illinois Attorney General's Office
D) Local county sheriff's departments
Answer: B
The IDFPR, Division of Professional Regulation, holds primary licensing and regulatory authority for
private detectives under 225 ILCS 447, while the Illinois State Police handles background checks and
PERC cards .
3. How long is a passing private detective examination score valid before it expires?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Answer: C
Under 68 Ill. Admin. Code 1240.200, if an applicant does not request license issuance within 3 years
of passing the examination, the exam score expires and the applicant must retake the exam and
submit a new application with fees .
,4. A person with a felony conviction may be eligible for licensure if what condition is met?
A) The felony was non-violent and occurred more than 5 years ago
B) At least 10 years have elapsed since full discharge from the felony sentence
C) The applicant has completed a rehabilitation program
D) The applicant obtains a pardon from the Governor
Answer: B
Under 225 ILCS 447/15-10, applicants must not have been convicted of any felony, or at least 10
years must have elapsed since full discharge from a felony sentence, except for crimes involving
dishonesty which may be permanent bars .
5. What is the minimum experience requirement for private detective licensure in Illinois?
A) 1 year of investigative experience
B) 2 years of law enforcement experience
C) 3 years of experience in the 5 years immediately preceding application
D) 5 years of any security-related experience
Answer: C
The Act requires a minimum of 3 years of experience in the last 5 years, working full-time for a
licensed private detective agency or equivalent investigative experience .
6. Which educational qualification can reduce the required experience by 2 years?
A) Associate degree in criminal justice
B) Baccalaureate degree in law enforcement or related field
C) High school diploma with military service
D) Any college degree regardless of major
Answer: B
A baccalaureate or higher degree in law enforcement, criminal justice, or a related field can provide
credit for 2 years of the required 3-year experience requirement .
7. What happens to a license application if the applicant fails to request issuance within 3 years?
A) The license is automatically issued anyway
B) The applicant must resubmit an application with all required fees
, C) The application is placed on hold indefinitely
D) The applicant receives a 1-year extension
Answer: B
Under Section 10-35 of the Act, if an applicant does not request issuance of their license within 3
years, they must resubmit an application with all required fees and retake the examination .
8. Within how many days must a licensee inform the Department of an address change?
A) 10 days
B) 14 days
C) 30 days
D) 60 days
Answer: B
Under 225 ILCS 447/10-37 and Administrative Code 1240.300, licensees must report any change of
home or office address to the Department within 14 days .
9. What is the maximum period a license can be placed on inactive status?
A) 1 year
B) 2 years
C) 3 years
D) No maximum period
Answer: C
Under the Act, a license may be placed on inactive status for a period not longer than 3 years, after
which restoration requires additional steps .
10. What must an applicant submit to the Department as part of the licensing process?
A) Only a completed application form
B) Fingerprints, proof of general liability insurance, and required fees
C) A letter of recommendation from a licensed detective
D) Proof of citizenship and voter registration
Questions & Answers with Detailed Rationales Instant Download
Summarized Exam Coverage
Regulatory Framework: Illinois Private Detective, Private Alarm, Private Security, Fingerprint
Vendor, and Locksmith Act (225 ILCS 447) administered by IDFPR; licensing requirements,
qualifications, application procedures, renewal, and restoration provisions .
Licensing Requirements: Minimum age 21, no felony convictions (or 10 years elapsed), good moral
character as continuing requirement, 3 years experience in last 5 years, education credits available
(baccalaureate = 2 years credit, associate = 1 year credit), examination passage required .
Agency Operations: Licensee-in-charge required, temporary certificates of authority (90 days +
extensions), branch office licensing, employee training requirements (20 hours basic within 30 days,
8 hours annual), recordkeeping obligations .
Prohibited Acts & Discipline: Class A misdemeanor for unlicensed practice, impersonating law
enforcement, false advertising, misrepresentation, unlawful use of firearms, failure to maintain
insurance, grounds for discipline including incompetence, dishonorable conduct, felony convictions .
Use of Force & Criminal Law: Reasonable and necessary force standard, deadly force only to prevent
imminent death/great bodily harm, citizen's arrest for felony committed in presence, Illinois criminal
statutes including robbery, burglary, battery, assault .
Surveillance & Privacy: Two-party consent state (Illinois Eavesdropping Act), reasonable expectation
of privacy, curtilage protection, GPS tracking restrictions, public records access, FCRA compliance,
HIPAA considerations .
Firearms Requirements: FOID card and Concealed Carry License required, Firearm Control Card for
on-duty carry, 40-hour training (20 classroom + 20 range), 75% passing score on written exam,
qualification every 2 years .
Evidence & Documentation: Chain of custody requirements, record retention (5 years for training
logs, 180 days for case files), subpoena compliance, report writing standards, confidentiality
obligations .
Exemptions: Government employees performing official duties, genealogists not holding out as
detectives, credit reporting agencies, insurance adjusters, computer forensics specialists not holding
out as detectives .
Continuing Education: 8 hours annual training for licensees, topics reasonably related to practice,
personal training log required, employer certification and record maintenance .
,Section 1: Licensing & Administrative Requirements (Questions 1-50)
1. What is the minimum age requirement to obtain a private detective license in Illinois?
A) 18 years old
B) 21 years old
C) 25 years old
D) No minimum age requirement
Answer: B
The Private Detective, Private Alarm, Private Security Act requires applicants for private detective
licensure to be at least 21 years of age, which is consistent across both detective and security
contractor licensing requirements .
2. Which entity is primarily responsible for issuing private detective licenses in Illinois?
A) Illinois State Police
B) Illinois Department of Financial and Professional Regulation (IDFPR)
C) Illinois Attorney General's Office
D) Local county sheriff's departments
Answer: B
The IDFPR, Division of Professional Regulation, holds primary licensing and regulatory authority for
private detectives under 225 ILCS 447, while the Illinois State Police handles background checks and
PERC cards .
3. How long is a passing private detective examination score valid before it expires?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Answer: C
Under 68 Ill. Admin. Code 1240.200, if an applicant does not request license issuance within 3 years
of passing the examination, the exam score expires and the applicant must retake the exam and
submit a new application with fees .
,4. A person with a felony conviction may be eligible for licensure if what condition is met?
A) The felony was non-violent and occurred more than 5 years ago
B) At least 10 years have elapsed since full discharge from the felony sentence
C) The applicant has completed a rehabilitation program
D) The applicant obtains a pardon from the Governor
Answer: B
Under 225 ILCS 447/15-10, applicants must not have been convicted of any felony, or at least 10
years must have elapsed since full discharge from a felony sentence, except for crimes involving
dishonesty which may be permanent bars .
5. What is the minimum experience requirement for private detective licensure in Illinois?
A) 1 year of investigative experience
B) 2 years of law enforcement experience
C) 3 years of experience in the 5 years immediately preceding application
D) 5 years of any security-related experience
Answer: C
The Act requires a minimum of 3 years of experience in the last 5 years, working full-time for a
licensed private detective agency or equivalent investigative experience .
6. Which educational qualification can reduce the required experience by 2 years?
A) Associate degree in criminal justice
B) Baccalaureate degree in law enforcement or related field
C) High school diploma with military service
D) Any college degree regardless of major
Answer: B
A baccalaureate or higher degree in law enforcement, criminal justice, or a related field can provide
credit for 2 years of the required 3-year experience requirement .
7. What happens to a license application if the applicant fails to request issuance within 3 years?
A) The license is automatically issued anyway
B) The applicant must resubmit an application with all required fees
, C) The application is placed on hold indefinitely
D) The applicant receives a 1-year extension
Answer: B
Under Section 10-35 of the Act, if an applicant does not request issuance of their license within 3
years, they must resubmit an application with all required fees and retake the examination .
8. Within how many days must a licensee inform the Department of an address change?
A) 10 days
B) 14 days
C) 30 days
D) 60 days
Answer: B
Under 225 ILCS 447/10-37 and Administrative Code 1240.300, licensees must report any change of
home or office address to the Department within 14 days .
9. What is the maximum period a license can be placed on inactive status?
A) 1 year
B) 2 years
C) 3 years
D) No maximum period
Answer: C
Under the Act, a license may be placed on inactive status for a period not longer than 3 years, after
which restoration requires additional steps .
10. What must an applicant submit to the Department as part of the licensing process?
A) Only a completed application form
B) Fingerprints, proof of general liability insurance, and required fees
C) A letter of recommendation from a licensed detective
D) Proof of citizenship and voter registration
