Illinois State Police Trooper Exam: Practice Questions and Answers
|Fall 2025/2026 Update | 100% Correct Latest
Question 1
Codeine (in low doses, e.g., cough syrup) is classified as what schedule under the Illinois
Controlled Substances Act (720 ILCS 570/)?
A. Schedule I
B. Schedule II
C. Schedule III
D. Schedule V
Correct Answer: D
Rationale: Schedule V includes preparations with limited quantities of codeine (e.g., <200 mg
per 100 ml) for non-abuse potential; aligns with federal DEA and Illinois Act classifications for
minimal risk drugs.
Question 2
Heroin is classified as what schedule under the Illinois Controlled Substances Act?
A. Schedule II
B. Schedule III
C. Schedule IV
D. Schedule I
Correct Answer: D
Rationale: Heroin has high abuse potential with no accepted medical use, making it Schedule I
per 720 ILCS 570/204 and federal CSA; possession is a felony offense.
Question 3
,Under the U.S. Constitution, cruel and unusual punishment is prohibited by which amendment?
A. 5th Amendment
B. 6th Amendment
C. 8th Amendment
D. 14th Amendment
Correct Answer: C
Rationale: The 8th Amendment explicitly bans cruel and unusual punishments, a key protection
in law enforcement interactions, as applied to states via the 14th Amendment.
Question 4
Excessive use of force, deadly force, and unreasonable searches/seizures violate which U.S.
Constitutional amendment?
A. 1st Amendment
B. 4th Amendment
C. 5th Amendment
D. 6th Amendment
Correct Answer: B
Rationale: The 4th Amendment protects against unreasonable searches and seizures; excessive
force falls under this via Graham v. Connor (1989) standards for objective reasonableness.
Question 5
Coerced confessions and lack of protection from self-incrimination violate which amendment?
A. 4th Amendment
B. 5th Amendment
C. 6th Amendment
, D. 14th Amendment
Correct Answer: B
Rationale: The 5th Amendment's Due Process Clause includes the Miranda rights (Miranda v.
Arizona, 1966) requiring warnings against self-incrimination during custodial interrogations.
Question 6
How many individuals are required to form a "criminal gang" under Illinois law (720 ILCS 5/25-
5)?
A. 2
B. 3
C. 5
D. 10
Correct Answer: B
Rationale: Illinois defines a criminal gang as three or more persons with intent to commit
felonies; this threshold aids ISP in gang enforcement and investigations.
Question 7
Under the Illinois Vehicle Code (625 ILCS 5/11-501), the BAC limit for DUI is:
A. 0.06%
B. 0.08%
C. 0.10%
D. 0.15%
Correct Answer: B
|Fall 2025/2026 Update | 100% Correct Latest
Question 1
Codeine (in low doses, e.g., cough syrup) is classified as what schedule under the Illinois
Controlled Substances Act (720 ILCS 570/)?
A. Schedule I
B. Schedule II
C. Schedule III
D. Schedule V
Correct Answer: D
Rationale: Schedule V includes preparations with limited quantities of codeine (e.g., <200 mg
per 100 ml) for non-abuse potential; aligns with federal DEA and Illinois Act classifications for
minimal risk drugs.
Question 2
Heroin is classified as what schedule under the Illinois Controlled Substances Act?
A. Schedule II
B. Schedule III
C. Schedule IV
D. Schedule I
Correct Answer: D
Rationale: Heroin has high abuse potential with no accepted medical use, making it Schedule I
per 720 ILCS 570/204 and federal CSA; possession is a felony offense.
Question 3
,Under the U.S. Constitution, cruel and unusual punishment is prohibited by which amendment?
A. 5th Amendment
B. 6th Amendment
C. 8th Amendment
D. 14th Amendment
Correct Answer: C
Rationale: The 8th Amendment explicitly bans cruel and unusual punishments, a key protection
in law enforcement interactions, as applied to states via the 14th Amendment.
Question 4
Excessive use of force, deadly force, and unreasonable searches/seizures violate which U.S.
Constitutional amendment?
A. 1st Amendment
B. 4th Amendment
C. 5th Amendment
D. 6th Amendment
Correct Answer: B
Rationale: The 4th Amendment protects against unreasonable searches and seizures; excessive
force falls under this via Graham v. Connor (1989) standards for objective reasonableness.
Question 5
Coerced confessions and lack of protection from self-incrimination violate which amendment?
A. 4th Amendment
B. 5th Amendment
C. 6th Amendment
, D. 14th Amendment
Correct Answer: B
Rationale: The 5th Amendment's Due Process Clause includes the Miranda rights (Miranda v.
Arizona, 1966) requiring warnings against self-incrimination during custodial interrogations.
Question 6
How many individuals are required to form a "criminal gang" under Illinois law (720 ILCS 5/25-
5)?
A. 2
B. 3
C. 5
D. 10
Correct Answer: B
Rationale: Illinois defines a criminal gang as three or more persons with intent to commit
felonies; this threshold aids ISP in gang enforcement and investigations.
Question 7
Under the Illinois Vehicle Code (625 ILCS 5/11-501), the BAC limit for DUI is:
A. 0.06%
B. 0.08%
C. 0.10%
D. 0.15%
Correct Answer: B
