BOISE, Idaho -

 Idaho's $2.5 billion dairy industry wants to put people who film their operations surreptitiously in jail for up to a year, a bid to block animal-rights groups from spying on farms in hopes of catching animal cruelty on tape.

Sen. Jim Patrick of Twin Falls Thursday introduced the measure on the heels of videos produced in 2012 by a group at one of Idaho's largest dairies documenting cows being beaten.

If the measure passes, anybody who enters an agricultural production facility without permission and records operations could face a year behind bars and a $5,000 fine.

Idaho's milk producers blame animal rights groups for trying to sabotage their operations.

The groups, meanwhile, contend they're trying to expose operations that mistreat their animals.

Utah is among states with a similar law.