Define and explain the terms and legal considerations associated with crash investigations Respond to a crash scene safely, Assess a crash scene properly, Secure a safe work environment at a crash scene, Provide emergency medical assistance to injured people at a crash scene, if necessary, Obtain pertinent information about a crash to determine how and why it occurred , Identify crimes revealed during a crash investigation, if any, Return a crash scene to normal as quickly as possible, Complete driver exchange of information properly, Take appropriate enforcement action, Document a crash correctly in appropriate crash report form.