Credible as well as unfounded threats at schools have increased nationwide since the Feb. 14 shooting at a high school in Parkland, Fla. Awareness is particularly heightened in Colorado, one of a few states that waives governmental immunity on acts of school violence and allows civil lawsuits to be filed. State lawmakers in 2015 passed the Claire Davis School Safety Act, named for a girl who was killed by a fellow student at Arapahoe High School in 2013. The law took full effect on July 1, 2017, and permits victims to sue districts for liability if they fail to ensure the safety of students and staff on school property or at district-sponsored events. Read more on Colorado Springs Gazette