Miranda warnings are required when a person is in custody and subjected to interrogation. Custody means the person’s freedom of movement is restrained to the degree that it resembles an arrest. Interrogation covers direct questions or words and actions likely to elicit an incriminating answer. If the person is not in custody and not being questioned with the purpose of obtaining evidence, warnings aren’t required. Also, if a suspect asks for counsel, questioning must stop until counsel is present or the suspect reinitiates and waives rights. Warrants have no bearing on whether warnings are needed.

The main idea is depoliticizing police leadership and staffing through formal, non-political processes. In the professional era, departments moved away from hiring and promoting based on political connections toward civil service structures that rely on merit. Civil service reforms established standardized hiring and promotion criteria, exams, job classifications, and independent oversight. Merit-based promotions ensure officers advance based on abilities, performance, and qualifications rather than favors from politicians or party machines. This creates a more professional, accountable police force and reduces the influence elected officials or political groups can exert over who gets hired or advanced. The other approaches keep or increase political control over policing. Increasing political patronage or deferring to local political machines would maintain or boost political influence in police operations. Expanding private security partnerships doesn’t directly address depoliticizing public policing and could introduce different interests into policing decisions.

Reducing misidentification comes from presenting a lineup in a way that eliminates bias and cues for the witness. Proper lineup procedures do this by using a double-blind administrator, sequential presentation, and fillers who match the witness’s description, along with neutral instructions that the suspect may or may not be in the lineup and that the witness should rely on memory—not guesses or producer hints. It also avoids giving feedback on identification, which can inflate confidence. This combination minimizes the chances of a wrong person being identified. Other approaches introduce bias or external influence (single eyewitness usage, being told the suspect’s identity beforehand, or publicly publishing the lineup), making misidentification more likely.

The main idea is incident-driven policing. In this approach, investigations start from a specific incident that’s reported, and the information used to handle the case comes mainly from those involved—victims, witnesses, and suspects. It reflects how traditional policing often operates: respond to what’s reported, gather statements, and build the case around that incident. This differs from proactive policing, which is about preventing crime and gathering information through proactive strategies; and from community-oriented policing, which focuses on building relationships and solving problems with the community. It also isn’t just about simply reacting after the fact in a general sense, but specifically about cases being driven by the incident that triggers the investigation.