George Zimmerman, who shot dead unarmed teenager Trayvon Martin, has been accused of pointing a gun at his girlfriend, sheriff's deputies said.
Zimmerman, who was acquitted of second-degree murder and manslaughter in a trial earlier this year, was detained after sheriff's deputies were called to the house he shares with his girlfriend in Apopka, northwest of Orlando.
He was charged with aggravated assault, battery and criminal mischief after an apparent argument with Samantha Scheibe, Chief Sheriff's Deputy Dennis Lemma said.
No one was hurt in the alleged incident and no one else was in the home when deputies arrived.
Deputies said Zimmerman had barricaded himself inside by wedging furniture against the door before officers arrived. Ms Scheibe was outside the home and gave deputies a key to get inside.
Once deputies entered the house Zimmerman did not resist and was not armed.
Neighbour Catherine Cantrell said she believed Zimmerman had been living there for at least a month.
"Just when you thought you heard the last of George Zimmerman," she said
"I'm in absolute shock. He was never outside. It's not like he was out flaunting around."
Zimmerman and his estranged wife were involved in a domestic dispute in September. Police said no charges were filed against either of them because of a lack of evidence.
That dispute took place just days after Shellie Zimmerman filed divorce papers.
The death of the black 17-year-old Trayvon Martin touched off a nationwide debate about race and self-defence. Zimmerman has said he shot the teenager to defend himself during a fight.
This to me, along with various other activities commited by Mr Zimmerman post Trayvon Martin trial, proves yet again that maybe Mr Zimmerman is not the upstanding citizen that he has portrayed himself as and that maybe the whole Zimmerman trial was a farce.