The article linked below has an interesting view on how cops should deal with CCW holders. He makes a number of points on how to recognize someone is carrying and the differences between those carrying legally and not.
Dealing with citizens legally carrying a concealed weapon
About the author
Ron Avery is President and Director of Training for The Practical Shooting Academy, Inc. and Executive Director of the non-profit, Rocky Mountain Tactical Institute - both training institutions dedicated to professional firearms and tactics courses, higher police standards and training and use of force research. Train with Ron Avery. Visit his Course Calendar. Ron is a former police officer with many years of street experience, which he brings into the training environment...