The police can only request a drug test if there is probable cause to believe he was under the influence when he operated the truck. This being a personal injury website, not an employment law website, I hesitate to give advice on whether you could ask for him to submit to a drug test. I think you can if you have a policy of a drug test for anyone involved in an accident at work. If the police asked for a drug test (which he has a right to refuse under the implied consent statute, unless y get a search warrant), you can request a copy, but they do not have to provide a copy. The hospital often does a drug screen in cases such as this because they need to know what drugs, if any, are in his system before they begin treatment. You cannot get these records without the driver/patient's consent. However, I would assume that this will ultimately result in a workers compensation claim. You or your insurer would have a right to any drug screen through the discovery process of this claim.
Answered on Oct 24th, 2013 at 11:34 AM