Here's the latest example from KULR-8 reporter Sarah Gravlee.
A Thursday press conference revealed more information about the weapons used to administer [sic] the four shocks. The Billings police use both M-26 and X-26 TASERS. Both have a starting voltage of 50,000, but they can be modified to deliver a smaller shock called a "drive stun." When modified, the M-26 delivers 5,000 volts and the X-26 administers 1,200 volts. Bain received two drive stuns from both types of weapons for a total of 12,400 volts. TASER instructor Sergeant Hafner said it's a safer stun. [LINK]
"...for a total of 12,400 volts..."
It's not clear if the cub reporter decided on her own to sum-up the quoted voltages (which are another falsehood by the way, but also irrelevant), or if the local taser "expert" was responsible for this moment of technical insanity.
Some of the other statements attributed directly to Sgt Hafner are equally fantastical, so my suspicions fall on him.