Evidence Submission Guidelines - Minnesota Department of Public ...

Table of Contents
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MN BCA Forensic Science Service
Evidence Submission Guidelines
Authorized by: DAS
Issue Date: 03/14/2013
Page 2 of 48 Pages
Preface ................................................................................................................................................ 3
1.0 Introduction .................................................................................................................................. 4
2.0 Contact Information and Hours .................................................................................................... 4
3.0 Services Provided .......................................................................................................................... 5
4.0 Coverage Area ............................................................................................................................... 6
5.0 General Safety Information .......................................................................................................... 7
6.0 General Case and Evidence Acceptance Policies .......................................................................... 8
7.0 General Evidence Collection ......................................................................................................... 9
8.0 Sealing .........................................................................................................................................12
9.0 Case Information .........................................................................................................................14
10.0 Section Specific Submission Requirements ..............................................................................15
10.1 Controlled Substances .................................................................................................................... 15
10.2 Toxicology ....................................................................................................................................... 17
10.3 Trace Evidence ................................................................................................................................ 22
Trace‐Micro ......................................................................................................................................... 22
Trace‐Chemical Testing ....................................................................................................................... 27
10.4 Biology ............................................................................................................................................. 30
Nuclear DNA ........................................................................................................................................ 30
CODIS .................................................................................................................................................. 34
Mitochondrial DNA (mtDNA) .............................................................................................................. 34
10.5 Firearms and Toolmarks.................................................................................................................. 38
Firearms .............................................................................................................................................. 38
Toolmark Evidence .............................................................................................................................. 42
10.6 Questioned Documents .................................................................................................................. 43
10.7 Latent Prints .................................................................................................................................... 45
10.8 Crime Scene .................................................................................................................................... 48