三头对案

Explanation: Refers to the witness or intermediary between the parties concerned with the presence of a confrontation, make it clear the truth. 　　Source: Guo Baochang "Big Family" Chapter XXVIII Pak three brothers 'three pairs of case', on-site supervision, verification of the Ming Sing Ming Kee books, that scene was very solemn. " 　　Examples: This thing we ~, a clear, since there is no connection.