Correct answer: A. Law and judicial process
Explanation: Direct answer: Option A, law and judicial process. Police have important public powers, but they are not free to act according to personal wishes, rumours or political revenge. The reasoning is: police power can affect liberty, property and safety; therefore it must come from law; procedures such as lawful grounds, records, hearing or judicial oversight prevent misuse; courts can review unlawful action. Option A is correct because law and judicial process control police power. Option B, private wish, is not a public legal authority. Option C, rumour, is not reliable proof or a lawful basis for punishment. Option D, political revenge, is an abuse of power and violates fairness. This does not mean police cannot act quickly in emergencies; even urgent action must have legal authority and later accountability. Citizens and officials are both subject to law. Memory cue: police power is public power, so it needs lawful limits and review.