Consultant at Hyundai Motor Co., Ltd.

Standing member of the Appeal Board

Non-executive director of KORAIL

Deputy Chief of the Seoul Metropolitan Police Agency

20th Daegu Metropolitan Police Agency Commissioner

The Head of The National Police Agency's Security Bureau

Public relations officer at the National Police Agency

22nd Chief of Gwanak Police Station in Seoul

37th Chief of Taebaek Police Station

Daegu Nambu Police Station