The "Dog Whisperer" star Cesar Millan is being investigated for possible animal cruelty against a pig.
Animal Care and Control officials visited Millan's business in California Thursday night, to ask about a recent episode of his show "Cesar 911".
In it, Millan uses a pig in a behavioral training session with a dog that killed two pet pigs.
The dog drew blood when it repeatedly bit the pig that Millan was using.
Millan was not at his business.
Investigators gave him 24 hours to call them.
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