Exclusionary Requirements In Criminal Investigation
163). Crime labs can provide personnel to assist investigators during the processing of the crime scene to recognize, identify, collect, and preserve physical evidence by using sophisticated forensic equipment, crime lab personnel can also assist with sketching, documentation, and photography of the crime scene (Buckles, 2006, p. 164). During the analysis of evidence crime labs provide different kinds of analysis services such as latent fingerprint and impressions analysis, physical sciences and trace evidence analysis, biological and serology analysis, toxicology analysis, ballistics analysis and toolmark identification, and questioned document analysis (Buckles, 2006, p. 166). In the court, lab personnel or criminalists can provide professional testimony of the evidence and explain the procedures that were taken with the evidence at the lab during the analysis and tests (Buckles, 2006, p.