"Los Angeles Times" quotes Stanford Criminal Justice Center Director and professor Robert Weisberg

"The Justice Department's move stops short of an about-face, but it puts significant checks on individual prosecutors," said Robert Weisberg, professor of law and director of the criminal justice center at Stanford University

"They may not be able to proceed with the same spirited aggression that they did in the past," he said. "But the government has so many weapons in their arsenal. This won't stop them. It will just slow things down a bit."