MADISON HEIGHTS, Mich. -- Two women suspected of being involved in identity theft have taken more than just personal information, but also a 14-month-old Chihuahua.

Jessica Sarcona works at the Animal Welfare Society in Madison Heights and had been taking care of the dog, who she named Oliver, since September.

She said on June 3 two women came into the shelter, wrote a check and adopted him.

"We spent a lot of time with them, they filled out an application and we talked with them .... like we would anybody," Sarcona said. "They seemed perfect for Oliver ... we just sent them on their way."

But Sarcona said a week later the bank returned the check.

She tried for three days to contact the women but the numbers given to her either went straight to voicemail or was disconnected. Sarcona also tried mailing vet records to the address but didn't hear anything back.

Madison Heights Police said they are investigating the fraudulent check, which was taken from a Lincoln Park woman's identity theft case.

Sarcona said she's not worried about getting the money back, but only for Oliver's safe return. She said she's worried he might try to be resold.

"Right now, all I want to know is where Oliver is," she said. "I just want him returned, no questions asked."

Sarcona said Oliver is about 6 pounds, tan, has "huge" ears and skin allergies. Sarcona said he has a bald spot on his nose and top of his head.

"He's very outgoing and friendly with everybody. He knows his name," Sarcona said.

Sarcona said the woman who adopted Oliver was black, just under 6 feet tall, had short black hair and was heavy-set. The second woman she was with is described by Sarcona as being black, skinny, longer black hair and was wearing a leg brace.

Sarcona said the two told her they were sisters and that one said she worked in the court system.

"I'm hoping they just wanted a free dog, that's why they did it," Sarcona said. "If that's the case, and they are providing him with a good home, I just need to know."