Texas Detective Licensing Exam – Practice
Questions And Correct Answers (Verified
Answers) Plus Rationales /2026 Q&A | Instant
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1. A detective arrives at a crime scene. What is the first priority?
A. Collect evidence
B. Interview witnesses
C. Secure the scene
D. Notify the media
Rationale: Securing the scene prevents contamination or loss of evidence,
which is the top priority.
2. Which amendment protects against unreasonable searches and seizures?
A. First Amendment
B. Fourth Amendment
C. Fourth Amendment
D. Fifth Amendment
Rationale: The Fourth Amendment guarantees protection against
unreasonable searches and seizures.
3. When interviewing a suspect, which approach is most effective?
A. Confrontational
B. Aggressive
C. Non-confrontational and professional
D. Dismissive
Rationale: A professional and calm approach encourages cooperation and
information disclosure.
,4. Chain of custody refers to:
A. The order of arrests
B. Evidence storage location
C. Documentation of who handled evidence and when
D. Crime scene perimeter
Rationale: Maintaining chain of custody ensures evidence integrity for court
use.
5. Which of the following is considered circumstantial evidence?
A. Fingerprints
B. Eyewitness testimony about someone being at the scene
C. DNA sample
D. Video footage
Rationale: Circumstantial evidence requires inference to connect to a fact;
fingerprints and DNA are direct physical evidence.
6. Which type of warrant is generally required to search a suspect’s home?
A. Arrest warrant
B. Search warrant
C. Bench warrant
D. Subpoena
Rationale: A search warrant authorizes law enforcement to search a specific
location for evidence.
7. Which is the primary purpose of a detective unit?
A. Traffic enforcement
B. Patrolling neighborhoods
C. Investigating crimes and gathering evidence
D. Issuing citations
Rationale: Detectives focus on investigations rather than routine patrol
duties.
8. In criminal investigations, probable cause means:
A. A hunch
B. Proof beyond a reasonable doubt
, C. Reasonable belief that a crime has occurred
D. Suspect confession
Rationale: Probable cause is the legal standard for arrests or obtaining a
search warrant.
9. Which of the following is considered a white-collar crime?
A. Burglary
B. Assault
C. Embezzlement
D. Arson
Rationale: White-collar crimes involve financial or corporate wrongdoing.
10. When interviewing a minor suspect, a detective must:
A. Use intimidation
B. Ensure a parent or guardian is present
C. Ignore legal procedures
D. Conduct the interview alone
Rationale: Legal protections require the presence of a parent or guardian
when questioning minors.
11. Which is the best method to preserve a crime scene?
A. Take photos after removing items
B. Allow multiple officers to walk through
C. Limit access and document all entries
D. Let the public view
Rationale: Limiting access prevents evidence contamination and maintains
integrity.
12. Which of the following is a duty of a detective during a homicide
investigation?
A. Patrol the streets
B. Write traffic citations
C. Interview witnesses, collect evidence, and analyze information
D. Serve warrants unrelated to the case
Questions And Correct Answers (Verified
Answers) Plus Rationales /2026 Q&A | Instant
Download Pdf
1. A detective arrives at a crime scene. What is the first priority?
A. Collect evidence
B. Interview witnesses
C. Secure the scene
D. Notify the media
Rationale: Securing the scene prevents contamination or loss of evidence,
which is the top priority.
2. Which amendment protects against unreasonable searches and seizures?
A. First Amendment
B. Fourth Amendment
C. Fourth Amendment
D. Fifth Amendment
Rationale: The Fourth Amendment guarantees protection against
unreasonable searches and seizures.
3. When interviewing a suspect, which approach is most effective?
A. Confrontational
B. Aggressive
C. Non-confrontational and professional
D. Dismissive
Rationale: A professional and calm approach encourages cooperation and
information disclosure.
,4. Chain of custody refers to:
A. The order of arrests
B. Evidence storage location
C. Documentation of who handled evidence and when
D. Crime scene perimeter
Rationale: Maintaining chain of custody ensures evidence integrity for court
use.
5. Which of the following is considered circumstantial evidence?
A. Fingerprints
B. Eyewitness testimony about someone being at the scene
C. DNA sample
D. Video footage
Rationale: Circumstantial evidence requires inference to connect to a fact;
fingerprints and DNA are direct physical evidence.
6. Which type of warrant is generally required to search a suspect’s home?
A. Arrest warrant
B. Search warrant
C. Bench warrant
D. Subpoena
Rationale: A search warrant authorizes law enforcement to search a specific
location for evidence.
7. Which is the primary purpose of a detective unit?
A. Traffic enforcement
B. Patrolling neighborhoods
C. Investigating crimes and gathering evidence
D. Issuing citations
Rationale: Detectives focus on investigations rather than routine patrol
duties.
8. In criminal investigations, probable cause means:
A. A hunch
B. Proof beyond a reasonable doubt
, C. Reasonable belief that a crime has occurred
D. Suspect confession
Rationale: Probable cause is the legal standard for arrests or obtaining a
search warrant.
9. Which of the following is considered a white-collar crime?
A. Burglary
B. Assault
C. Embezzlement
D. Arson
Rationale: White-collar crimes involve financial or corporate wrongdoing.
10. When interviewing a minor suspect, a detective must:
A. Use intimidation
B. Ensure a parent or guardian is present
C. Ignore legal procedures
D. Conduct the interview alone
Rationale: Legal protections require the presence of a parent or guardian
when questioning minors.
11. Which is the best method to preserve a crime scene?
A. Take photos after removing items
B. Allow multiple officers to walk through
C. Limit access and document all entries
D. Let the public view
Rationale: Limiting access prevents evidence contamination and maintains
integrity.
12. Which of the following is a duty of a detective during a homicide
investigation?
A. Patrol the streets
B. Write traffic citations
C. Interview witnesses, collect evidence, and analyze information
D. Serve warrants unrelated to the case
