Police used Taser Gun to Subdue 6-year-old Student

Miami-Dade police tasered a 6-year-old boy who was wielding a piece of glass in a school office and threatening to hurt himself, officials confirmed Thursday.

Police say they followed their own guidelines and only tasered the child because they were afraid he would hurt himself. But the incident has raised calls for the department tighten its policies regarding the use of the stun guns, which shoot 50,000 volts of electric current through a subject.