Attorney General Jeff Sessions banned sanctuary cities from participating in a federal public safety program.

In a statement through the Department of Justice (DOJ), Sessions said sanctuary cities would not be allowed to participate in the Public Safety Partnership program until they prove that they have properly dropped their status and made efforts to reduce violent crimes by illegal aliens.

“By protecting criminals from immigration enforcement, cities and states with so-called ‘sanctuary’ policies make all of us less safe,” Sessions said in the statement. “We saw that just last week, when an illegal alien who had been deported twenty times and was wanted by immigration authorities allegedly sexually assaulted an elderly woman in Portland, a city that refuses to cooperate with immigration enforcement.”

“By forcing police to go into more dangerous situations to re-arrest the same criminals, these policies endanger law enforcement officers more than anyone,” Sessions continued. “The Department of Justice is committed to supporting our law enforcement at every level, and that’s why we’re asking ‘sanctuary’ jurisdictions to stop making their jobs harder.”

“By taking simple, common-sense considerations into account, we are encouraging every jurisdiction in this country to cooperate with federal law enforcement,” Sessions said. “That’s what 80 percent of the American people want them to do, and that will ultimately make all of us safer—especially law enforcement on our streets.”

In new guidelines for the federal-local program, the DOJ will screen out sanctuary cities using the following questions:

“These policies are driven by politics and do not protect their citizens. We will fight them with every lawful tool available,” Sessions said.

Under the Public Safety Partnership program, started by Sessions’ DOJ in June, the Justice Department works with local jurisdictions to reduce violent crime in American communities. So far, 12 jurisdictions are members of the program.

There are more than 165 sanctuary cities across the U.S. that protect criminal illegal aliens, despite widespread opposition to the practice.

John Binder is a reporter for Breitbart Texas. Follow him on Twitter at @JxhnBinder