Page 2 - Acid Solution News Today

>> since the serial number on the shotgun had been ground off, investigators sent the gun to forensic scientist timothy duerr. he knew that scratch marks usually arent as deep as the initial engraving. >> the serial number may only be a few thousandths of an inch, but the compressed metal goes a lot deeper into the metal. >> duerr applied an acid solution that when applied only goes at one level and goes no deeper. >> it will actually eat away and you can actually burn past the point of compress...

Investigators sent the gun to forensic scientist timothy duerr. he knew that scratch markings usually arent as deep as the initial engraving. >> the serial number may only be a few hundredths of an inch, but the compressed metal goes a lot deeper into the metal. >> an acid solution was applied which only goes at one level and goes no deeper. >> it will actually eat away and you can actually burn past the point of compression. it reacts differently between the compressed and uncompressed metal. >...