Chapter 8. Restoration of Erased Numbers

  1. Brian J. Heard

Published Online: 29 SEP 2008

DOI: 10.1002/9780470694589.ch8

Handbook of Firearms and Ballistics: Examining and Interpreting Forensic Evidence, Second Edition

Handbook of Firearms and Ballistics: Examining and Interpreting Forensic Evidence, Second Edition

How to Cite

Heard, B. J. (2008) Restoration of Erased Numbers, in Handbook of Firearms and Ballistics: Examining and Interpreting Forensic Evidence, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470694589.ch8

Publication History

  1. Published Online: 29 SEP 2008
  2. Published Print: 11 JUL 2008

ISBN Information

Print ISBN: 9780470694602

Online ISBN: 9780470694589

SEARCH

Keywords:

  • erased numbers;
  • restoration;
  • Theory;
  • Chemical methods;
  • Frys Reagent;
  • Villela's reagent;
  • Electrolytic Restoration;
  • ultrasonic;
  • magnetic;
  • electron channelling;
  • Laser Etched Numbers;
  • bar codes

Summary

This chapter contains sections titled:

  • Introduction

  • Methods Used for Removal of Serial Numbers

  • Theory behind Number Restoration

  • Non-recoverable Methods of Number Removal

  • Practice of Number Restoration

  • Chemical Methods of Restoration

  • Reagents Used for Various Metals

  • Electrolytic Methods of Restoration

  • Reagents Used

  • Ultrasonic Cavitation for Restoration

  • Magnetic Particle Method for Restoration

  • Other Methods of Restoration

  • Laser-Etched Serial Numbers and Bar Codes and Their Restoration

  • References

  • Further Reading