| NCJ Number: |
47526  |
| |
|
| Title: |
LABORATORY PROFICIENCY TESTING PROGRAM - REPORT NO 5 AUTO PAINT EXAMINATION |
| |
|
| Author(s): |
ANON |
| |
|
| Corporate Author: |
Forensic Sciences Foundation Press
United States of America |
| |
|
| Date Published: |
1975 |
| |
|
| Page Count: |
23 |
| |
|
| Sponsoring Agency: |
Forensic Sciences Foundation Press
Rockville, MD 20852
National Institute of Justice/
Rockville, MD 20849
US Dept of Justice
US Dept of Justice NIJ Pub
Washington, DC 20531 |
| |
|
| Grant Number: |
74-NI-99-0048 |
| |
|
| Sale Source: |
National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America |
| |
|
| Document: |
PDF |
| |
|
| Type: |
Statistics |
| |
|
| Language: |
English |
| |
|
| Country: |
United States of America |
| |
|
| Annotation: |
THE RESULTS OF TEST ANALYSES OF SAMPLE OF AUTO PAINT PERFORMED BY 117 FORENSIC LABORATORIES ARE DOCUMENTED IN CHARTS AND GRAPHS. |
| |
|
| Abstract: |
THE LABORATORIES WERE SENT THREE SAMPLES OF PAINT, TOGETHER WITH THE INDICATION THAT SAMPLE A HAD BEEN RECOVERED FROM THE CLOTHING OF A DEAD VICTIM FOUND AT ROADSIDE AND THAT SAMPLES B AND C WERE FROM TWO SEPARATE SUSPECT VEHICLES. IN REALITY, SAMPLES A AND C HAD BEEN PREPARED WITH THE SAME PAINT FROM A U.S. VENDER. SAMPLE B HAD BEEN PREPARED WITH DIFFERENT PAINT FROM A CANADIAN VENDER. THE LABORATORIES WERE ASKED TO DETERMINE WHETHER SAMPLE A COULD HAVE A COMMON ORIGIN WITH SAMPLE B AND/OR C AND TO EXPLAIN THE METHODS USED IN ARRIVING AT A CONCLUSION. OF THE 117 LABORATORIES, 93 (79 PERCENT) CORRECTLY RESPONDED THAT ONLY A AND C COULD BE OF COMMON ORIGIN. TWENTY-TWO RESPONDED THAT BOTH B AND C COULD HAVE A COMMON ORIGIN WITH A. THE MOST FREQUENTLY USED METHODS OF ANALYSIS WERE MICROSCOPE AND SOLUBILITY TESTS. SURVEY RESULTS ARE PRESENTED IN SEVEN TABLES, INCLUDING DETAILED BREAKDOWNS OF THE METHODS AND FINDINGS OF INDIVIDUAL LABORATORIES. THE RESULTS ARE NOT INTERPRETED. AN EXPLANATION OF SURVEY METHODS AND A COPY OF THE QUESTIONNAIRE ARE INCLUDED. OTHER TESTS INVOLVING PAINT ANALYSIS ARE REPORTED IN NCJ-47531 AND 47537. TESTS OF OTHER SUBSTANCES ARE REPORTED IN NCJ47522-47525, 47527-47530, 47532-47536, AND 47538-47542. (LKM) |
| |
|
| Index Term(s): |
Crime laboratories; Paint analysis; Surveys |
| |
|
|
|
| |
|
|
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=47526 |
| |
|
