Emergency custody and involuntary temporary detention; transportation. Requires magistrates to consider a request to authorize alternative transportation, if available, for persons subject to an emergency custody or involuntary temporary detention order if the order is based upon a finding that the person who is the subject of the order has a mental illness and that there exists a substantial likelihood that, as a result of mental illness, the person will, in the near future, suffer serious harm due to his lack of capacity to protect himself from harm or to provide for his basic human needs but there is no substantial likelihood that the person will cause serious physical harm to himself or others as evidenced by recent behavior causing, attempting, or threatening harm and other relevant information.