The arrest of Stone, which involved about a dozen agents wearing bullet-proof vests and tactical gear, occurred shortly after 6 a.m. ET at his home in Fort Lauderdale, Fla., and was captured live on CNN.

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"This is a standard procedure to arrest someone when you don’t have a belief that they’ve come in voluntarily," Milgram told CNN's "New Day" on Friday morning. "It could be that they’re afraid he’ll flee, it could be that there’s evidence he would destroy and they clearly wanted the element of surprise."

"They’re going in at the crack of dawn with agents fully armed and there’s a reason," she added. "We don’t know that fully yet, but there’s a reason they did that."

Milgram served as New Jersey's attorney general from 2007-2010 and appears on CNN occasionally as a law enforcement expert.



Stone was arrested in Fort Lauderdale, Fla., the special counsel's office said in a statement early Friday.