Arkansas Attorney General Dustin McDaniel has issued a legal opinion that will prevent school districts from arming teachers and school administrators this fall.

The decision likely blocks Clarksville School District’s plan to arm more than 20 district employees with concealed 9mm handguns for the upcoming school year. In preparation for the program, more than 20 Clarksville administrators and staff members completed 53 hours of training through the Nighthawk Custom Training Academy, a private training facility in northwest Arkansas.

The training included role playing of school shootings using air soft pellet guns.

Participants were to be given a one-time stipend of $1,100 to purchase a handgun and holster. The   district expected to pay about $50,000 for ammunition and training.

“The plan we’ve been given in the past is ‘Well, lock your doors, turn off your lights and hope for the best,’” Clarksville Superintendent David Hopkins told the Associated Press. But as deadly incidents continued to happen in schools, he explained, the district decided, “That’s not a plan.”

The district was trying to use a little known state law that was implemented to allow the arming of private guards working for security agencies, according to USA Today.

Read More: