While stun guns are not classified as a true firearm in Colorado, they still can be dangerous in untrained or irresponsible hands. A stun gun is defined as any device that temporarily immobilizes an individual through the application of electrical charges. They are a non-lethal method of subduing would-be criminals, especially in escalating physical confrontations.
Stun guns cannot be sold to, or be in the possession of, anyone under 18 years old. Also, anyone who has ever been convicted of a felony, is a fugitive from justice, is a drug user and addict or is an illegal alien is prohibited from the possession of a stun gun in Colorado. One does not need a license to carry a stun gun, unlike a true firearm. In any case wherein a stun gun is purchased in Colorado, it is the buyer's responsibility to certify that they are of legal age to buy and possess a stun gun. The seller will not be held responsible should the buyer be found to be breaking the law.
Stun guns must only be used in training or self-defense. They must not be treated as toys since, even though they are deemed non-lethal, they can cause physical harm and exacerbate pre-existing medical problems, such as those with heart conditions. Stun guns are allowed as concealed protection devices on college campuses, such as at Colorado State University.
Should a stun gun be used in any Colorado criminal activity, such as burglary or assault, the person or persons responsible will be convicted of a Class 5 felony. In Colorado, as of 2010, a Class 5 felony incurs a minimum sentence of one year imprisonment along with a $1,000 fine, and a maximum sentence of three years imprisonment and a $100,000 fine.