Attn. Youngsville, NC PD Dodge Charger on fire due from possible problems from it's light bar.
Article is very vague on what kind of light bar was used and from the video you can't see much, but be careful out there guys!
The BATFE Firearms Technology branch defines the term Bump Fire to mean: Rapid manual trigger manipulation to simulate automatic fire.
Installing a rubber band on a semi-auto firearm will not cause the firearm to shoot in the manor shown in this video