A related question, is would or should someone believe them, especially considering so many cop impersonators.
I have had detectives come to my door to gather information. I would ask for ID and every time I would be handed a business card. Some became hostile when I would ask for a police ID.
"I have had detectives come to my door to gather information. I would ask for ID and every time I would be handed a business card. Some became hostile when I would ask for a police ID."
No doubt. Anyone can print up cards at home.