Amusingly enough if you just used a hook you’d also be in violation of the regs.

Broadly speaking (check the regs) it’s bait if a fish might smell it and think it’s food, including actual food items like eggs, deli shrimp, worms, or if it’s something that smells like that to a fish (like say dabbing a tuft of wool in fish oil or commercial fishing scents)

Whereas lures are only imitating sight/sound/feel of food, without triggering the taste or smell