To quote the fellow's site:
"I hire unsuspecting, amateur women for BONDAGE videos and then tickle them when they are least expecting it and are tied up and cannot escape. If it turns out they are not ticklish, I will not use the video. If they are ticklish, then you get an incredible non-consentual tickle torture video like nothing ever made before."
If this is the truth, and not just a marketing ploy, then perhaps one of his models complained to the authorities and had him tossed in the slammer. Believe it or not, tying someone up under false pretences and then touching them against their will is perfectly acceptable grounds for charges of both assault and unlawful confinement/kidnapping...