The [possibly] unintended consequences of these laws are appalling. 

Via the LA Times: 

Since the fatal shooting of 17 people at a South Florida high school, five states — Delaware, Florida, Maryland, Rhode Island and Vermont — have passed laws that allow authorities to temporarily take away guns from a person who has shown a pattern of violence.

While most legislative proposals to address gun violence stall, the "red flag" laws, as they are known, have passed with bipartisan support and the collaboration of activists on both sides of the gun control debate. The momentum for these laws comes after investigations revealed that the shooters often showed warning signs that they would commit violence.

Nine states now have such laws on the books and dozens of others are considering such proposals.

The most recent law came in Delaware, where Gov. John Carney on April 30 signed the Beau Biden Gun Violence Prevention Act into law. It allows mental health professionals to report potentially dangerous people and have their guns seized through a court order.

Read more here.