What You'll Learn
The Concept
Police organizations possess legal authority. Legitimacy asks a different question: do people believe that authority is being exercised appropriately? This distinction matters because law enforcement depends heavily upon voluntary cooperation. Police need people to call 911, report victimization, provide information, serve as witnesses, comply with lawful directions, preserve evidence, and participate in community problem solving. A police agency can possess unquestioned statutory authority while simultaneously suffering from weak community cooperation.
Procedural justice focuses heavily on the fairness of the process through which authority is exercised. Frequently discussed elements include voice — individuals are given a reasonable opportunity to explain themselves; neutrality — decisions appear based upon facts and consistent standards rather than favoritism; dignity and respect — people are treated professionally; and trustworthy motives — officials demonstrate that they are acting for legitimate purposes. NIJ materials identify these as core procedural-justice concepts.
A critical distinction is that procedural justice does not guarantee favorable outcomes. An officer can issue a citation, make an arrest, seize evidence, deny a request, or use lawful authority while still using procedurally fair methods. Conversely, an individual who receives a favorable outcome may still perceive the process as arbitrary, disrespectful, or biased.
Research generally supports a relationship between procedural treatment, legitimacy, and public attitudes, although researchers continue examining the precise causal mechanisms and magnitude of those effects. A systematic review summarized through OJP reported benefits from incorporating procedural-justice principles into police interactions. Experimental research has also found that positive non-enforcement police contact can improve attitudes toward police under certain conditions.
This is important because police-community relationships are not created exclusively during crises. Routine interactions may accumulate over time. The quality of everyday encounters — traffic stops, calls for service, community events, casual contacts — shapes the reservoir of trust that police draw upon during difficult moments.
Procedural justice should not be misunderstood as a public-relations strategy. If officers communicate politely but fail to protect victims, investigate serious crimes, or address persistent disorder, legitimacy can still suffer. Likewise, highly productive enforcement that communities perceive as indiscriminate or unfair may undermine cooperation.
Professional policing therefore seeks several outcomes simultaneously: lawfulness, effectiveness, fairness, safety, accountability, and legitimacy. These objectives can sometimes create tension, but they should not automatically be treated as competing values.
Real-World Application
An officer stops a driver for a minor traffic violation. The stop is legally justified. The officer can issue the citation in a way that is curt, dismissive, and provides no explanation — or in a way that briefly explains the reason for the stop, allows the driver to respond, and treats the person respectfully. Both approaches are legally permissible. Research suggests the second approach is more likely to leave the driver with a perception that the encounter was fair, even if they receive the same citation. Multiplied across thousands of stops, these differences accumulate into community-level perceptions of police legitimacy.
Why It Matters
For Police Officers
Procedural justice is not about being soft on enforcement — it is about exercising authority in ways that maintain public cooperation and trust. Officers who understand its principles can conduct enforcement more effectively while building rather than eroding community relationships.
For Students
Procedural justice research has significantly influenced police training, policy, and reform debates. Students who understand its evidence base and limitations can engage critically with claims about what police should do to improve community relations.
Think About It
Does procedural justice primarily affect behavior or primarily attitudes toward police?
Can police legitimacy remain high when crime-control effectiveness is low?
How should legitimacy be measured — through surveys, behavior, or other means?
Do non-enforcement contacts produce durable changes in public attitudes toward police?
Sources & Further Reading
National Institute of Justice. Procedural Justice. nij.gov.
Office of Justice Programs. Systematic review of procedural justice and police interactions. ojp.gov.
Office of Justice Programs. Experimental research on non-enforcement police contact and attitudes. ojp.gov.
Tyler, T. R. (2006). Why People Obey the Law. Princeton University Press.