Defective Products A defective product causing injury can be anything from a piece of heavy machinery or simply a child's toy. Such defects can show up as either an original design problem, or one of defective manufacture. Also, there often is a question of adequate warnings or instruction for a particular product. To determine whether a manufacturer has placed into the stream of commerce a product that would be deemed legally defective, an engineer or other expert may need to examine the item. For that reason, it is imperative you the suspect product, or fully document its condition with accurate photos. In addition, you should immediately contact our office to discuss the particulars of your situation with an attorney familiar with the legal issues surrounding claims of defective products.