MICHIGAN'S LAW ENFORCEMENT INFORMATION NETWORK

THE MICHIGAN LAW ENFORCEMENT INFORMATION NETWORK (LEIN) WENT INTO OPERATION IN JULY 1967. THE SYSTEM HAS THREE MAJOR FILES: WANTED PERSONS, WANTED VEHICLES, AND REVOKED OR SUSPENDED DRIVERS. THEY ARE EXTENSIVELY CROSS-INDEXED. VERY TIGHT SECURITY IS MAINTAINED ON BOTH LINES AND TERMINALS. WHILE BATCH PROCESSING IS COMMON IN MANY INFORMATION SYSTEMS, IT IS NOT SOMETHING WITH WHICH THE POLICE CAN LEAVE IN THIS TYPE OF FILE; SO THE UPDATING SYSTEM IS ON-LINE. IT WOULD BE DESIRABLE IF POLICE RADIO EQUIPMENT WERE AVAILABLE TO PROVIDE THE ABILITY TO MAKE INQUIRIES DIRECTLY FROM THE PATROL CAR INTO THE COMPUTER FILE AND RETURN, COMPLETELY BYPASSING IN-BETWEEN OPERATORS. THE COMMUNICATIONS PORTION OF LEIN CONSISTS OF 160 TERMINALS AND 133 JURISDICTIONS. THEY ARE TIED TO THE COMPUTER CENTER THROUGH 74 LINES OF 75 BAUD CAPACITY. THE TERMINALS ARE ASR 28. THE CENTRAL COMPUTER EQUIPMENT IS A BURROUGHS B-5500 WITH TWO PROCESSORS AND EIGHT MEMORY MODULES PLUS PERIPHERAL EQUIPMENT. THE SIZE IS SUFFICIENT TO HANDLE 450,000 WANTED PERSONS AND 20,000 WANTED VEHICLES. THEY ARE ALSO TIED, THROUGH A 2400 BAUD LINE TO THE MICHIGAN SECRETARY OF STATE'S B-5500 WHICH ALLOWS ON-LINE ACCESS TO ALL DRIVER RECORDS AND VEHICLE REGISTRATION RECORDS. THEY ARE ALSO USING TWO 150 BAUD LINES TO THE FBI'S NATIONAL CRIME INFORMATION CENTER IN WASHINGTON AND ONE 150 BAUD LINE TO THE OHIO LAW ENFORCEMENT AUTOMATED DATA SYSTEM. THE TOTAL COST OF THIS SYSTEM (INCLUDING ORIGINAL STUDIES AND OPERATION THROUGH JUNE 1969) IS $2.7 MILLION. /BPR/

• Supplemental Notes:
  • Vol 15, pp 106-108
• Corporate Authors:

  Datamation

  ,    
• Authors:
  • Plants, J R
• Publication Date: 1969-6

Subject/Index Terms

• TRT Terms: Communication systems; Data storage; Drivers; Information processing; Information systems; Law enforcement; Networks; Police; Radio equipment; Vehicles
• Uncontrolled Terms: Violations
• Subject Areas: Highways; Operations and Traffic Management; Security and Emergencies; Vehicles and Equipment;

Filing Info

• Accession Number: 00225671
• Record Type: Publication
• Source Agency: Traffic Systems Reviews & Abstracts
• Files: TRIS
• Created Date: May 13 1970 12:00AM