Cargo must be properly secured on large trucks to prevent it from shifting or falling off and causing accidents. You may have a claim against several potentially responsible parties if they are found to have contributed to your accident. You may have a claim against the trucking company, the owner of the trailer if different than the trucking company and/or the loader of the cargo. Multiple parties may be jointly liable. A knowledgeable truck accident attorney will investigate the accident and identify all the potentially liable parties.