A Maritime Self-Defense Force lieutenant commander who allegedly compiled personal data on people requesting disclosure of agency information may be punished for violating the SDF law, Defense Agency chief Gen Nakatani said Friday.

Nakatani, appearing before the House of Representatives Cabinet Committee, said the officer and other officials may be punished under the law for failing to protect agency secrets, in addition to receiving administrative penalties.

The 48-year-old lieutenant commander in charge of information disclosure at the Maritime Staff Office compiled a list containing the data. It included personal backgrounds on the individuals who had requested information.