ENEffective communication is a core competence in sustainable policing, yet training programs often fail to prepare officers for the emotional and relational complexity of real-world encounters. This study explored how police officers from Lithuania, the Czech Republic, and Romania (n = 109) evaluate their communication training and identify the interactions they find most difficult. Using a convergent mixed-methods design, the research integrated quantitative assessments of training coverage with qualitative analysis of officers’ narratives. Findings reveal consistent gaps in emotional regulation, empathy, negotiation, and de-escalation skills, especially in encounters with intoxicated or mentally distressed individuals, and in internal communication within hierarchical structures. Viewed through the lens of organizational sustainability, communication competence emerges as a key form of human capital that enhances officer well-being, reduces operational risks, and strengthens public trust. The study highlights the need to embed experiential, scenario-based learning into police curricula to align training with the emotional realities of field practice. Keywords: police training; communication skills; procedural justice; experiential learning; officer preparedness; relational competence; public safety.