Hello, do I need to write up a contract and specifications for a company is just coming to the shared dock and picking up a 64 gallon trash can that has packaging and papers to be shredded? They never enter the facility and are just dumping the trash barrel and then leaving it there for us to bring back to our warehouse. I would assume yes because of the contents of the trash barrel make it a product safety/food fraud thing (i.e if our packaging got in the wrong hands). If yes, what exactly am I looking to create? I haven't had any experience in this area of management.