A woman who was caught shoplifting a $600 pair of jeans from Neiman Marcus, then admitted committing credit card fraud and aggravated identity theft in an unrelated case, was sentenced Monday to 31 months in federal prison for the latter crimes.

Melody J. Cablay, 36, is also facing a maximum 10-year state prison term in the shoplifting case, which became a robbery when she shoved and scratched the Neiman Marcus security officer who stopped her.

Police arrested Cablay on April 28 for the robbery.

While she was in custody unable to post $25,000 bail, a federal grand jury returned an indictment charging her with using the stolen credit cards and personal identification of two people.

Donna Gray, her lawyer in the federal case, said Monday that after Cablay was arrested for robbery, she confessed, then confessed to another crime to which she was not even a suspect.

Cablay pleaded no contest to the Neiman Marcus robbery in state court in May. She is to be sentenced in that case later this month.

She pleaded guilty to credit card fraud and aggravated identity theft in federal court in July. She got one of the credit cards from a person who said he stole it from the mail, according to her plea agreement. That person also gave her the credit card subscriber’s Social Security number, birth date and address.

U.S. District Chief Judge Susan Oki Mollway sentenced Cablay to the mandatory 24 months in prison for the aggravated identity theft plus seven months for the credit card fraud. She also ordered Cablay to repay the $68,425 she stole from the credit card companies when she used the stolen cards.

Cablay has felony convictions in state court in 1999 for credit card fraud, forgery and theft, and for misdemeanor and petty misdemeanor theft.

She said she was ashamed to be back in court, apologized and thanked her lawyer.