PHOENIX (AP) -- Arizona's governor on Tuesday ordered a state board to redistribute a training video on the state's controversial immigration law to all law enforcement agencies.

The move comes ahead of an expected ruling from the U.S. Supreme Court this month on the law, which was signed by Gov. Jan Brewer in 2010.

Brewer said in a statement Tuesday that she wants to make sure officers are prepared if the court upholds the law.

Parts of the law blocked from taking effect include a provision requiring police to question people's immigration status while enforcing other laws if there's a reasonable suspicion they're in the country without documents.

The Arizona Peace Officer Standards and Training Board's video outlines factors that constitute reasonable suspicion that someone is in the country without documents, including language, demeanor and foreign-vehicle registration.

It also includes types of identification that should immediately end an officer's suspicions about immigration status.

The case was argued before the high court in April, and a ruling is expected by the end of June. Based partly on skeptical questions posed by justices during the hearing, legal experts expect that the court likely will uphold Arizona's requirement that police check the immigration status of people they stop for other reasons; that provision was put on hold by a judge in July 2010 and hasn't yet been enforced. Less controversial parts of the law were allowed to take effect.

A decision in favor of Arizona could clear the way for other states to enforce immigration-check requirements and create an opening for states to take a larger role in immigration enforcement after mostly staying out of it for decades and letting the federal government handle it alone.

Five others states – Alabama, Georgia, Indiana, South Carolina and Utah – have enacted similar laws.

Below, get to know the nation's harshest immigration laws:

California's Proposition 187 was submitted to the voters with the full support of then Republican governor Pete Wilson. It essentially blamed undocumented immigrants for the poor performance of the state economy in the early 1990s. The law called for cutting off benefits to undocumented immigrants: prohibiting their access to health care, public education, and other social services in California. It also required state authorities to report anyone who they suspected was undocumented.

Status: The law passed with the support of 55 percent of the voters in 1994 but declared unconstitutional 1997. The law was killed in 1999 when a new governor, Democrat Gray Davis, refused to appeal a judicial decision that struck down most of the law. Even though short-lived, the legislation paved the way for harsher immigration laws to come. On the other hand, the strong reaction from the Hispanic community and immigration advocates propelled a drive for naturalization of legal residents and created as many as one million new voters.

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