FRSC 2001 – Introduction FRSC 2001 – Introduction to Forensic Science to Forensic Science

Technology IITechnology II

Professor BensleyProfessor Bensley

Alfred State CollegeAlfred State College

First StepFirst Step Macroscopic AnalysisMacroscopic Analysis

What does it look like? How is it packaged?What does it look like? How is it packaged? 5 P’s5 P’s

Macroscopic ExamMacroscopic Exam

How are Drug Cases Submitted How are Drug Cases Submitted to Laboratory?to Laboratory?

The Analysis ContinuesThe Analysis Continues

Obtain weight of material if neededObtain weight of material if needed What is residue?What is residue?

Presumptive ExaminationsPresumptive Examinations

Also known as preliminary or Also known as preliminary or screening testsscreening tests Examples: Color tests, microcrystalline Examples: Color tests, microcrystalline

tests, low-power microscopy, thin layer tests, low-power microscopy, thin layer chromatography, gas chromatographychromatography, gas chromatographyMethamphetamine

Marquis Test (L)

Nitroprusside Test (R)

Heroin

Marquis Test (L)

Mecke Test (R)

Microcrystalline TestsMicrocrystalline TestsCocaine Methamphetami

ne

Thin Layer ChromatographyThin Layer Chromatography

Confirmatory ExaminationsConfirmatory Examinations Also known as identification Also known as identification

examinationsexaminations Examples: Mass spectrometry, infrared Examples: Mass spectrometry, infrared

spectroscopyspectroscopy

Crack Cocaine

Cocaine HCl (salt)