Updated

The owner of a Chihuahua brought it to the Inland Valley Veterinary Specialists & Emergency Center in Upland saying the tiny dog was showing erratic behavior. He told doctors he believed the dog, named Jack Sparrow, may have ingested methamphetamine.

The doctors tested Jack and found that he indeed had traces of the drug — when the owner heard this, he left the care center and took Jack with him.

But the vets had seen Jack suffering from convulsions and felt his life was in jeopardy, so they called the Fontana Animal Services Team and provided all of the information they had.

Animal Service Officers approached the owner's residence in the city of Fontana and observed Jack still suffering from the effects of the drug and other signs of neglect. They seized Jack from the owner and took him back to emergency center, where he continues to recover.

The case was immediately submitted to the San Bernardino County District Attorney's Office and an arrest warrant for felony animal cruelty was issued for the owner.

Fontana Police Officers were able to locate the owner, 21-year-old Isaiah Nathaniel Sais, in the city of Rancho Cucamonga late Friday afternoon. He was arrested and booked into the West Valley Detention Center on the warrant.

Jack continues to rehabilitate at Inland Valley.

Once he is well enough he will be transferred to a temporary foster home. Currently Jack is hyper sensitive to noise and sudden movement, but he is expected to recover in time.

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