Last time I checked, U.S. Bills all have these words on it: This note is legal tender for all debts, public and private.
Apparently, cash is not king if you're buying second-hand merchandise in Louisiana.
According to House Bill 195:
A secondhand dealer shall not enter into any cash transactions in payment for the purchase of junk or used or secondhand property. Payment shall be made in the form of check, electronic transfers, or money order issued to the seller of the junk or used or secondhand property and made payable to the name and address of the seller. All payments made by check, electronic transfers, or money order shall be reported separately in the daily reports required by R.S. 37:1866.
State Rep. Rickey Hardy (co-author of the Bill) stated that this was intended to make it difficult for criminals to sell stolen goods.
"It's a mechanism to be used so the police department has something to go on and have a lead."