A Florida judge has postponed a decision on whether to hold an unprecedented second "stand your ground" hearing for a woman who received a lengthy prison sentence for firing a gun.

Circuit Judge James Daniel on Tuesday set a hearing for August 1 on whether Marissa Alexander should be granted a second stand your ground self-defense hearing. Daniel also set a new tentative date of Dec. 1 for Alexander's second trial on aggravated assault with a deadly weapon charges.

Alexander, 33, was convicted in May 2012 of three counts of aggravated assault with a deadly weapon and was sentenced to 20 years in prison under the state's minimum mandatory requirements.

Alexander says she acted in self-defense after her estranged husband beat her. The warning shots were fired near her husband and his two children.