Hard-shelled quartet who fight crime: Abbr.

Let's find possible answers to "Hard-shelled quartet who fight crime: Abbr." crossword clue. First of all, we will look for a few extra hints for this entry: Hard-shelled quartet who fight crime: Abbr.. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.