paul shapiro is vice president for farm production in the humane society of the united states. >> this is a very clear effort by the meat industry to prevent whistle blowers from gaining entrance because they don't want them taking photos of animal cruelty and safety problems and more. >> he's alive. >> last year in utah, animal rights advocate, amy mire, shot this videotape from the side of the road on public property, of a cowing moved with a tractor outside of a slaughterhouse. >> the police weren't interested in the slaughterhouse workers. instead, mire was arrested and charged with a misdemeanor. agricultural interference, becoming the first person charged in one of these so-called ago gag laws. >> am i free or being detained? >> the case against her was dropped. >> the humane society has used undercover video like this investigation at a slaughterhouse in new jersey. as a result of the foot annual, the u.s. department of agriculture temporarily suspended operations in new york city. they helped establish a pattern of abuse in criminal cases. >> without video evidence, that's ofte

paul shapiro is vice president for farm bureau protection. >> this is a very clear effort for the meat industry to prevent whistle blowers from gaining employment at factory farms and slaughter plants, because they don't want them taking photos of routine animal cruelty, food safety problems and more. >> the cow, he's alive. >> yes! >> last year in utah, amy myers shot this videotape on the side of the road on public property of a cow being moved with a tractor outside a slaughterhouse. >> what's going on today? >> oh, not a whole lot. >> the police weren't interested in the slaughterhouse workers. instead, meyer was arrested and charged with a misdemeanor, agricultural operation interference, becoming the first person charged under one of those so-called ag gag laws. >> am i free to leave or being detained? >> you are being tee detained right now. >> ok. >> the case against her was dropped and the law challenged in court. >> that's what these ag gag laws are all about. >> like peta, the humane society used undercover video like this operation in new jersey. as a result of this footage