Start thinking about a complete professional camera setup, and you're in the ballpark. We're one of the least expensive, because our scanner does room-sized spaces (range is 30-40 feet). You can spend a whole lot more, and get scanners that have ranges up to half-a-mile.

"IC-CRIME's laser scanner" is actually supplied by the company I work for, and it's called the DeltaSphere 3000 We've sold dozens to police departments, CSI units, and such in several countries. More pictures at the website, of course.