PurposeThe current study sought to better understand the factors that contribute to whether officers value procedurally just interaction techniques and contribute to the limited research examining how the effects of warrior and guardian mentalities may vary based on individual officer characteristics.Design/methodology/approachSurvey data collected from patrol officers in two geographically different and ethnically diverse United States police departments allowed for an examination of the generality of warrior and guardian orientations on perceptions of procedural justice across gender, race and/or ethnicity, military service, education, and experience.FindingsThere was a largely invariant effect of the mentalities on officer attitudes toward procedural justice, except for officers of color. In this sample, the guardian effect on prioritizing procedural justice was stronger for officers of color than for White officers.Originality/valueThis study sheds light on our theoretical understanding of the warrior/guardian framework and offers practical implications for police leaders and policymakers in their effort to improve police-community relations.