EQUIPMENT SYSTEMS IMPROVEMENT PROGRAM - DEVELOPMENT SYSTEM ANALYSIS - RECORDING SYSTEM FOR ILLEGAL TELEPHONE CALLS

• NCJ Number: 17246
• Author(s): ANON
• Date Published: 1973
• Length: 31 pages
• Contract Number(s): F04701-72-C-0073; LEAA-J-IAA-035-72
• Sponsoring Agency: US Dept of Justice; US Dept of the Air Force
• Corporate Author: Aerospace Corporation
• Sale Source: National Institute of Justice/
• Language: English
• Country: United States of America

Annotation

DESCRIPTION OF A SYSTEM ANALYSIS OF A PROPOSED TELEPHONE MONITORING SYSTEM TO RECORD ILLEGAL TELEPHONE CALLS, WITH APPLICATION TO A FUTURE SPEAKER IDENTIFICATION SYSTEM.

Abstract

THE CURRENT LAW ENFORCEMENT PROCEDURE ON HANDLING COMPLAINTS INVOLVING THIS TYPE OF CALL IS INVESTIGATED. A PRELIMINARY DESIGN STUDY FOR A COMPACT PORTABLE VOICE RECORDING SYSTEM SHOWS THAT EQUIPMENT COSTING APPROXIMATELY $700 PER UNIT COULD PROVIDE VOICE SAMPLES OF PERSONS MAKING ILLEGAL TELEPHONE CALLS THAT WOULD BE ACCEPTABLE AS COURT EVIDENCE. SUCH EQUIPMENT WOULD BE INSTALLED ON THE TELEPHONE OF A PERSON SUBJECTED TO SUCH CALLS. A TRADE STUDY OF TWO APPROACHES TO WHERE THE RECORDING MIGHT BE ACCOMPLISHED IS PRESENTED. A SYSTEM ANALYSIS THAT INVESTIGATED THE FACTORS INVOLVED IN RECORDING AT A CUSTOMER'S TELEPHONE, OR AT THE LOCAL TELEPHONE EXCHANGE, SHOWS THAT CENTRAL RECORDING CAN BE DONE MORE CHEAPLY. THE SYSTEM ANALYSIS FURTHER CONCLUDES THAT NO SPECIAL EQUIPMENT DEVELOPMENT SHOULD BE UNDERTAKEN FOR RECORDING TELEPHONE CALLS AT THE PRESENT TIME. THE APPENDIX CONTAINS A DISCUSSION OF A PRELIMINARY DESIGN OF A LOCAL TELEPHONE RECORDER AND A REVIEW OF APPLICABLE STATE AND FEDERAL LAWS CONCERNING ILLEGAL TELEPHONE CALLS AND ELECTRONIC SURVEILLANCE OF TELEPHONE CALLS FOR PURPOSES OF EVIDENCE COLLECTION. (AUTHOR ABSTRACT MODIFIED)