FOX NEWS - At the center of national debate, a question remains unanswered: Are sanctuary cities that protect illegal immigrants safer than non-sanctuary cities?
Sanctuary supporters claim they are.
"Police chiefs across the nation believe that enlisting local police to enforce immigration law is a bad idea," California Senate President Pro Tem Kevin De Leon, a Democrat, claimed at a news conference last week. "Having [Immigration and Customs Enforcement] pluck criminals out of jail and send them across the border or wherever they came only to come right back endangers our communities.”
But is that true?
A six-year study published last year by the University of California, Riverside found "violent crime is slightly higher in sanctuary cities." It concluded there was "no statistically discernible difference in violent crime rates, rape, or property crime across" 55 cities studied.
And at least one city, Phoenix, saw a drop in crime after it eliminated its sanctuary city status, according to former law enforcement officials.
Yet, some 200 cities nationwide adopted sanctuary policies and lawmakers propose to make California a sanctuary state. While the statute is opposed by the statewide county sheriff's association, Los Angeles Police Chief Charlie Beck supports the bill that would prohibit local police from cooperating with ICE requests for information on illegal immigrants in custody.
"We do not want to dilute trust because trust is the most important thing in policing," said Chief Beck. "We depend on our communities, particularly our immigrant communities to cooperate with us, not only to keep them safe but to keep all of you safe."