choker modification

“You saw that my crutch has been modified, right?” said Accelerator disdainfully to
Sugitani. “The additional legs to aid walking and the motor, all those are just part of the
disguise. What this thing really is, is something that blocks other interference devices.”
“What did you say?”
“If this thing just blocked other wavelengths, and it ended up blocking off the Misaka
Network then it’d be useless. So, I was waiting for you guys to use that kind of
wavelength on me. Then, after careful analysis of that wavelength and using the
equipment in this cane, an interference wavelength can be reverse-engineered to
specifically block that wavelength.”
That’s right.
When the limo had been attacked, Shiokishi’s forces had used a long distance
controlling wavelength. Accelerator at the time had taken the opportunity to take a
sample of the wavelength his enemy used.
Now that the long distance controlling wavelength was blocked by his crutch, it couldn’t
reach the choker.
Accelerator didn’t lose his ability, and he could still walk and talk.
He took out the gun in his holster, and pointed it at Sugitani.
“This is how a villain does things.” said the monster in a bored tone. “There’s no
difference between you and me. I’m definitely not a good person, so for you who uses
the same methods, you’re also an exceptional villain.”

- Toaru Majutsu no Index Volume 19, Chapter 3 Part 11