After reading the whole article, IMO Fultz should be charged for what he actually did, and the sergeant who told the trooper, "It's up to you," should be disciplined for not doing his job. Making unpopular decisions is one of the reasons supervisory people get paid more. That guy dodged his responsibility, laying the risks he should have taken himself onto the trooper - risk of punishment for ignoring the infraction, risk of ostracism by other officers for making the arrest. When a subordinate specifically consults you for advice, it's your job to give it. This guy plain and simple let his trooper down. If he isn't stepping up right now to take 100% of the heat, his superiors should be penalizing him for still not doing his job.