Violation if Teller Shares Info to Police?

We had an individual come in to open a new account. They had an out of town license, out of town tag on car, out of town address on ​a Treasury check and wanted cash back. We said no for various reasons and they left. Later a policeman who banks with us came in. The teller told him about the situation and he asked for copy of the license and check (which the teller provided). He ran the license and discovered there were multiple warrants out for arrest of the person. Later our CFO freaked and said the teller violated laws by providing the info to the policeman. I was wondering what laws were broken and if we are opened up for a lawsuit.