is the capacity of the states to regulate behavior and enforce order within their territory for the betterment of the health, safety, morals, and general welfare of their inhabitants.
That is a legislative branch power by congress.
The monarch had the power to make or change laws, to collect some kinds of taxes and estates.
Expanding the power of police to enforce drug laws
It is the power to arrest the people breaking the laws. Driving when drunk is an offence under negligence and the police can arrest someone.
All laws are meant to be followed and abided by, therefore if a law is broken by someone the Police have the power to arrest you for doing so; as the Job of the Police is to do exactly that; (uphold the laws of the country being Policed). In conclusion the answer to the question is that any law, if broken allows the police to lawfully arrest.
I'm not sure if you mean which police force enforces laws or which courts do. Canada has a Federal police force, the RCMP which is a national police force. THey are responsible for enforcing Federal law, but they are also expected to enforce provincial and local laws as well. In some areas of Canada, they are the only police - there is no municipal or provincial police Some Provinces also have police forces such as the OPP (ontario provincial police) who enforce highway laws, provincial laws then cities have a police force. Not sure if this is what you asked, but hope it does.
In most cases all laws apply to police and non-police both. Some laws have specific exemptions for police.
the firt one
Police power can be determined by the laws in this order: federal, state, and local. However, while people may think it may overrule personal rights to privacy, it truly doesn't. One must understand all of the laws of the city they are located in or the situation they believe they were wronged by.
the second law
police powerPolice Power
The question is not worded well. (In the broad sense) The power of the police is derived from the authority of the Executive Branch of government (of which the police are a part) to enforce the laws and regulations enacted by the Legislative Branch of Government. (In a more narrow sense) Police power is confined by the jurisdiction in which they are employed or assigned. (for example: City A's police cannot go to County B's jurisdiction and exercise their authority).