Communication, Negotiation and Conflict Resolution-Police Administration & Management

Explain how stereotyping can be a barrier to communication. Is it important to
understand the principle of projection when communicating with a person who is angry? Why? Could stereotyping have anything to do with projection? 

 https://www.policeone.com/patrol-issues/articles/5-things-police-officers-should-know-about-their-body-language-Y1LQ18dUEHPABCoq/ 

 https://www.helpguide.org/articles/relationships-communication/conflict-resolution-skills.htm