Did I insult the policeman?

I had a policeman at my door tonight. He has had an ongoing conversation with my husband over the past couple months since my husband's wallet was stolen, but I didn't know his rank/title. Hubby wasn't home when the policeman came to our house tonight. I addressed him as "Officer". Was this correct?

Definitely right, my friend is a police officer and she hates it when people call her a "policewoman", she's an "officer".

Thank you!

No, I wouldn't address a police officer as "policeman" or "policewoman". I meant was "officer" correct as in, they are not properly addressed as "Sir" or "Constable" or something else.

I think 'officer' is good, or 'ma'am/sir'. From what I see on TV they can catch a lot of flak, so just the effort to show a bit of respect is probably appreciated.

I think technically it's "constable" or rank if you know it (all police of any rank hold the office of constable). Provided you're polite about it they're very unlikely to care.

The Office of Constable Every sworn police officer in England and Wales is a ‘Constable’ regardless of rank. It is from the Office of Constable that each officer derives their powers. The Office of Constable means a police officer has the additional legal powers of arrest and control of the public given to him or her directly by a sworn oath and warrant. These are not delegated powers simply because they have been employed as an officer. Police officers are not employees, but office holders. Each police officer has personal liability for their actions or inaction. The chief officer of the force to which each constable is attached also has a level of corporate responsibility.