This totally fits within the Lacey Act after reading it. Whomever is buying these crab either suspects they are illegal crab or knows it. Either way there has to be documentation for every pound of crab a wholesaler has on hand. I think it has to start with them to get to the actual crab thieves. With totes on deck, I would think this is not a small deal, I'm guessing there is quite a lot of pounds of crab stolen and illegally sold to a wholesaler who is then in violation by either knowingly having illegal crab, or falsifying fish tickets to make it look legal.
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Have pole, will fish.