AIRLINE HIJACKING - HOW GOOD ARE THE COUNTERMEASURES (FROM OPERATIONS RESEARCH IN LAW ENFORCEMENT, JUSTICE, AND SOCIETAL SECURITY, 1976, BY S H BROUNSTEIN AND M KAMRASS - SEE NCJ-38116)

• NCJ Number: 38134
• Author(s): M KAMRASS
• Date Published: 1976
• Length: 15 pages
• Corporate Author: D C Heath and Co
• Publication Format: Document
• Language: English
• Country: United States of America

Annotation

THE EFFECTIVENESS OF FIVE ANTIHIJACKING SECURITY PLANS IS MEASURED BASED ON VALUES DETERMINED THROUGH AN ANALYSIS OF 146 DOMESTIC HIJACKING.

Abstract

EACH PLAN DEPENDS ON A COMBINATION OF TWO, OR MORE, SCREENING STEPS (PROFILE MATCHING, IDENTIFICATION CHECKS, METAL DETECTION, AND PHYSICAL SEARCH). THE PROBLEM WITH SUCH A SEQUENTIAL SCREENING IS THAT THE IMPERFECTNESS OF EACH STEP ALLOW SOME POTENTIAL HIJACKERS TO BOARD THE AIRCRAFT. IT WAS FOUND THAT A SEQUENTIAL PROCEDURE THAT USES A METAL DETECTOR IS LESS EFFECTIVE THAN ONE THAT DOES NOT. THE INSERTION OF A REDUNDANCY PROCEDURE INCREASED SCREENING PROCEDURE EFFECTIVENESS ENOUGH TO COMPENSATE FOR A DECREASE IN VIGILANCE BY HALF.