(a. the document may not comply with the requirements of this title or of any other law or regulation regarding its issue, form or content; or

(b. the issuer may have violated laws regulating the conduct of his business; or

(c. the goods covered by the document were owned by the bailee at the time the document was issued; or

(d. the person issuing the document does not come within the definition of warehouseman if it purports to be a warehouse receipt.