MCOLES Test common mistakes
MCOLES Test · Understand the traps and how to avoid them.
Treating every post-arrest statement as requiring Miranda warnings, or conversely treating every pre-arrest statement as never requiring them.
The candidate memorizes 'arrest equals Miranda' instead of applying the two-part custody-plus-interrogation test.
What to do instead
For each statement, separately ask: was the person in custody under the totality of circumstances, and was the statement the product of interrogation or its functional equivalent? Then apply warnings only when both are present.
Accepting a third party's consent to search without identifying that person's common authority over the area or item.
The candidate focuses on whether the person said 'yes' and overlooks authority, scope, and voluntariness.
What to do instead
Before relying on consent, establish who has actual or apparent common authority, what specific areas the consent covers, whether it was voluntary, and whether it was revoked or limited.
Making a warrantless misdemeanor arrest for an offense not committed in the officer's presence without checking a recognized exception.
The candidate applies a general 'officers can arrest for misdemeanors' rule and ignores Michigan's in-presence requirement and statutory exceptions.
What to do instead
Identify the specific offense, confirm whether it was committed in the officer's presence, and check whether a statute or recognized exception permits a warrantless arrest before taking the person into custody.
Charging or classifying an offense under a generic or federal label instead of the controlling Michigan statute and degree.
The candidate studies broad national criminal law summaries rather than Michigan Compiled Laws and MCOLES objectives.
What to do instead
For each offense, name the Michigan statute, the required elements, the degree or penalty classification, and any Michigan-specific limitation before selecting an answer.
Extending a traffic stop beyond its original purpose to ask unrelated questions or run unrelated checks without independent reasonable suspicion.
The candidate believes that any delay during a stop is permissible while 'investigating' or waiting for a check to return.
What to do instead
Keep the stop tied to the traffic violation, note when the original purpose is complete, and require independent reasonable suspicion before prolonging the stop for unrelated investigative activity.
Approaching a traffic stop by walking into the traffic lane or standing directly at the driver's window without using the patrol vehicle or other cover.
Routine stops create complacency, and the candidate treats the stop as a paperwork task rather than a high-risk contact.
What to do instead
Use a planned approach, prefer the passenger side when practical, stay out of traffic, use the vehicle as cover, watch the occupant's hands, and maintain radio awareness.
Documenting only the final transfer of evidence and leaving gaps in the chain of custody.
The candidate treats chain of custody as a form completed at the end rather than a continuous record.
What to do instead
Record each transfer at the time it occurs: collector, package or seal, storage location, date and time, and every person who handles the item, including lab and court transfers.
Writing reports that state conclusions such as 'the subject was intoxicated' or 'the suspect resisted' without the underlying observations.
The candidate writes to justify the arrest rather than to preserve the factual basis for later review.
What to do instead
Write a chronological factual narrative with direct observations, quoted statements, measurements, and descriptions of actions, and include exculpatory or inconsistent information.
Applying adult waiver standards to a juvenile's statements or custodial interview without considering age and the opportunity for parental or guardian involvement.
The candidate assumes juvenile procedure mirrors adult procedure and overlooks the totality-of-circumstances analysis required for juveniles.
What to do instead
Evaluate the juvenile's age, education, experience, and understanding; make reasonable efforts to contact a parent or guardian when required; and document the totality of circumstances supporting any waiver.
Failing to intervene in or report a fellow officer's excessive force or misconduct.
The candidate prioritizes loyalty or fear of conflict over the legal and professional duty to act.
What to do instead
Intervene when present and safe to do so, report the conduct through the required chain, and document the facts objectively rather than remaining silent.