My prefix is humble, my suffix is prime,
My infix assisted a Russian in crime,
I know all the secrets of this little town
And if you need me, just look around.
What am I?
The second line has nothing to do with politics.
The title of the puzzle is irrelevant to the solution.
The "prefix" word is mostly used in UK.
The Super Final Very Last Hint:
The word itself is actually very small and simple, mundane even. No higher matters are involved. Think your typical friday night :)
Starting to doubt the quality of this one since it's taking quite some time to solve. Here is the Super Absolutely Very Much Final and Incredibly Last Hint:
The suffIX is Roman.