"They killed the cow they are going after."

Someone is not telling the truth. It’s either the polygraph industry behind the age-old lie detection equipment, or it’s the makers of the newer voice-stress test technology.

Both say their methods are dependable, and both claim their competitor is spreading falsehoods about what works best for police. It’s a fight that won’t be resolved any time soon.

But it gets worse. Two companies touting the alternative, voice-stress systems are battling each other like you wouldn’t believe. And it’ll take a South Florida court to decide between the rivals.

Read more at the South Florida Sun-Sentinel