WELDON SPRING, Mo. — Police will work to protect peaceful protesters after a grand jury’s decision in the Michael Brown shooting case is announced, but those who cross the line into violence will face consequences, Missouri Gov. Jay Nixon warned Tuesday.

More than 1,000 police officers have received special training ahead of a decision expected later this month about whether Ferguson Officer Darren Wilson, who is white, will face charges for fatally shooting Brown, 18, who was black and unarmed. The National Guard will be available if needed