The U.S. Supreme Court could rule as early as Monday on the future of Arizona's controversial immigration law, Senate Bill 1070, and Gov. Jan Brewer wants to make sure law enforcement is ready.

Brewer on Tuesday issued an executive order requiring the Arizona Peace Officer Standards and Training Board to redistribute to all law-enforcement agencies by Friday a training video originally sent out when the law passed two years ago.

"The governor is optimistic that the heart of SB 1070 will be upheld and implemented," Brewer spokesman Matthew Benson said. "The governor thought this was an appropriate time to revisit the issue and make sure Arizona law enforcement is as prepared as possible for partial or full implementation of the law."

SB 1070, among other things, makes it a state crime to be in the country illegally and requires an officer engaged in a lawful stop, detention or arrest to, when practicable, ask about a person's legal status when reasonable suspicion exists that the person is in the U.S. illegally.

Federal courts halted that part and four other key parts of the law from being enforced. Brewer appealed to the Supreme Court to allow the entire law to go into effect.

The training video covers factors that constitute reasonable suspicion that someone is in the country illegally -- foreign-vehicle registration, language, demeanor and whether the stop has occurred in an area where "unlawfully present aliens are known to congregate looking for work." It also includes a section on types of identification that should immediately end an officer's suspicions about immigration status, including an ID from any government agency that requires people to prove they are in the U.S. legally.

AZPOST director Lyle Mann said the board is complying with the governor's order and today will send out a "rechaptered" DVD of the training material they produced in 2010.

Mann said no one knows what the Supreme Court will decide, but he believes Brewer's goal is to assure every law-enforcement agency is prepared for whatever decision the court makes.

Once the Supreme Court rules, AZPOST will distribute supplemental information to law enforcement explaining which additional parts of the law, if any, now go into effect and any additional court requirements.

The court could, among numerous options, declare that parts of the law will go into effect immediately or it could send the issue back to a lower court, delaying implementation by days or weeks.

"Until the court says something, any kind of question about what are we going to do and when is basically a hypothetical," Mann said.