I love it!  I do the same thing when they call. I tell them I am Sheriff so & so and they called a crime scene.  They will not need to cooperate with me by giving me information I need or the police will be sent to arrest them.  It is a crime to not cooperate with the police in an investigation.  What is your full name and complete address.  What is you ss #, what is the complete name and address of the company you work for, and what is the complete name and address of the owner of the company.  Usually, they hang up before getting this far.