CO Study Guide 2026

Everything you need to pass the CO exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 CO Exam Format at a Glance

100
Questions
210 min
Time Limit
70%
Passing Score

📚 CO Topics to Study (75)

✍️ Sample CO Questions & Answers

1. A supervisor asks an officer to alter a detail in a completed incident report. The officer should:
Add an addendum noting the correction and who requested it, following proper amendment procedures

Official reports can only be amended through proper procedures, with documentation of who changed what and why, to preserve the integrity of the original record.

2. Which behavior MOST commonly signals that an inmate is planning to assault another inmate?
Giving away personal property and becoming unusually calm after a conflict

Giving away property and sudden calm after a conflict can indicate an inmate is preparing for a serious violent act.

3. Peer mentoring programs in correctional facilities typically involve:
Experienced or program-completed inmates supporting newer or at-risk inmates

Peer mentoring programs use trained inmates to support others, leveraging shared experience to promote positive behavior and program engagement.

4. What is the primary goal of security procedures in correctional facilities?
To ensure safety and maintain order

The primary goal of security procedures in correctional facilities is to ensure the safety of inmates, staff, and the public, while also maintaining order and control within the institution. These procedures prevent escapes, contraband introduction, violence, and other disruptive behaviors, creating a secure environment for all.

5. What makes a report clear and effective?
Using clear, detailed, and logical writing

A clear and effective report uses precise language, includes all relevant details, and presents information in a logical, organized manner. This ensures that anyone reading the report can easily understand the events, actions taken, and individuals involved without ambiguity. Such clarity is vital for accurate record-keeping, effective communication, and informed decision-making in a correctional environment.

6. After witnessing a use-of-force incident involving another officer, you are asked to write your account. The MOST important rule is:
Write only what you personally observed, not what others told you

An accurate witness account must reflect only what you personally observed, free from collaboration or second-hand information.

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Your CO Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation