A federal magistrate in Chicago last November ordered Apple to help federal prosecutors access data on an iPhone in a personal bankruptcy and passport fraud case, one of more than a dozen cases around the country similar to the legal battle over the telephone of one of the San Bernardino shooting suspects.

Court records show U.S. Attorney Zachary Fardon filed a November 2015 motion saying law enforcement needed Apple's help to bypass the passcode to search, extract and copy data from an iPhone 5S owned by Pethinaidu and Parameswari Veluchamy, the Chicago Tribune reported.

An affidavit filed Nov. 13 said text messages, phone contacts and digital photos might help confirm wrongdoing. It also said data on the phone "may also provide relevant insight into the cellphone owner's state of mind as it relates to the offense under investigation."

The Chicago Sun-Times reported that U.S. Magistrate Judge Mary Rowland's order said Apple should provide authorities "reasonable technical assistance to enable law enforcement agents to obtain access to unencrypted data" She added Apple "may provide a copy of the encrypted data to law enforcement, but Apple is not required to attempt to decrypt, or otherwise enable law enforcement's attempts to access any encrypted data."