Are my tips being stolen legally?

I work at a restaurant in which all of the tips are put into a single tip jar, then to a single tip pool at the end of the night, to be distributed bi-monthly to the employees based on the amount of hours worked. Is it legal for my employers to keep 100% of these tips to cover drawer shortages? They also had to pay $200 to fix the sink in the kitchen, which is being paid for with tips. Is this legal either? (I live and work in Arizona) I would appreciate more than a "yes" or "talk to a lawyer" if at all possible, maybe links to the actual laws being broken. Thanks!