"Parliament declares certain actions to be criminal to reflect the values and wishes of society. For example, Canadian criminal law contains prohibitions against such actions as obtaining body samples for DNA testing and the illegal use of computer data-bother developments of the late 20th century. Penalties for drinking and driving or the use of narcotics likewise reflect the concerns of conteparary society. Criminal law reflects social changes and growth."
Actions
It is not at all clear from your question which king, what actions, or whose actions you are asking about.
Criminal cases and civil cases
Parliament decide upon laws.
No, Parliament decides.
The OPEC, Organization of the Petroleum Exporting Countries, is a group of eleven developing countries that decide certain imports and exports in order to stabilize the market for goods such as oil.
"decide" in the IPDE process
policy making
Your conscience must decide the optimum course for the best actions and decisions to be executed for the whole good of all concerned.
You don't have to bother speculating. Federal courts do not, and never will, decide divorce actions.
Criminal justice jobs involve solving criminal cases. You would have to examine evidences and witnesses, hear debates from prosecutors and defendant, and decide whether a person is guilty or innocent.
The people vote in elections for their choice of representative in the Parliament when it has been decided who the parliamentarians are, they get together and decide who is going to be the leader of the Parliament or "Prime minister" He/She then decides on what Parliamentarians Will then fill the role of the ministers in charge of the various portfolios or areas of responsibility of the Parliament and so on.