Officer Olson pulls Jane over for speeding. Jane says, "If you'll let this slide, I'll give you free coffee for a month at my coffee shop!" Officer Olson thinks about the proposition for a minute (he loves coffee, especially when it's free!), but then he thinks, "Wait a minute! What kind of officer am I? I am not one who can be bribed!" So, he issues the citation. Based on his thought process, we know he's a: ____.