I started to show my credentials and explain who I was but he cut me short.

He drew the other a little aside and showed him his credentials.

He showed his credentials, and the guard who examined them nodded.

If you'll go on vision I'll show you my credentials.

They stood up, shook my hand, and showed me their credentials.

I went to the desk clerk and showed him my credentials.

You're welcome to go inside, just show your credentials to the security guards.

The boys introduced themselves to the officer and showed him their credentials.

I'm sure he showed you his credentials, but they could be forged.

For example, during hot pursuit - in which case the police officer may still be required to show his credentials.