Section 554.9333 - Priority of certain liens arising by operation of law1.Possessory lien. In this section, "possessory lien" means an interest, other than a security interest or an agricultural lien:a. which secures payment or performance of an obligation for services or materials furnished with respect to goods by a person in the ordinary course of the person's business;b. which is created by statute or rule of law in favor of the person; andc. whose effectiveness depends on the person's possession of the goods.2.Priority of possessory lien. A possessory lien on goods has priority over a security interest in the goods unless the lien is created by a statute that expressly provides otherwise.2000 Acts, ch 1149, §53, 187