Crime judgment device, relay system, telephone system, crime judgment method and program

摘要

PROBLEM TO BE SOLVED: To automatically correspond to crime of the new means.SOLUTION: A crime determination device comprises: a keyword acquisition part that acquires an appearance increase keyword as a keyword of which an appearance number is increased in a predetermined site of the Internet; and a crime determination part that determines whether the appearance increase keyword appears during a telephone call by a predetermined condition or more, and determines whether the telephone call is used for a crime at a condition looser than a case where it is determined that the appearance increase keyword does not appear by the predetermined condition or more.SELECTED DRAWING: Figure 4