what is a 100percent way to check if a android phone is being bugged?

How can you scan a android phone to tell if its bugged?
Beside taking the phone to the ATT store and having it wipes and reinstalled. Is there any other way?

Anti virus program or a specific program set up to scan android phone

on top of that how about your computer beside normal anti virus is there a third part way to scan it? like if something was written into the windows software its self?

Bugged? As in someone put a listening device on it and can record your telephone calls?

There are tons of antivirus apps available on Google Play. However, you should find an Android forum and ask about this kind of stuff.