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Full-Text Articles in Forensic Science and Technology
Ethical Implications Of Codis, Lucy Grogan
Ethical Implications Of Codis, Lucy Grogan
Masters Theses
CODIS stores and maintains numerous DNA profiles, and is used as a tool by the criminal justice system in order to help solve crime. Deoxyribonucleic Acid, or DNA for short, is the genetic material that an individual inherits from one’s parents (NIH, 2019). Certain portions of this genetic material are selected for use within the CODIS database due to their lack of medically relevant information. There is an immense amount of power associated with DNA and the CODIS database that it is held within, which allows for many ethical issues to arise. In order to create a usable and safe …
Optical Tweezers As An Effective Tool For Spermatozoa Isolation From Mixed Forensic Samples, Nicole Auka, Michael Valle, Bobby D. Cox, Peter D. Wilkerson, Tracey Dawson Cruz, Joseph E. Reiner, Sarah J. Seashols-Williams
Optical Tweezers As An Effective Tool For Spermatozoa Isolation From Mixed Forensic Samples, Nicole Auka, Michael Valle, Bobby D. Cox, Peter D. Wilkerson, Tracey Dawson Cruz, Joseph E. Reiner, Sarah J. Seashols-Williams
Forensic Science Publications
A single focus optical tweezer is formed when a laser beam is launched through a high numerical aperture immersion objective. This objective focuses the beam down to a diffraction-limited spot, which creates an optical trap where cells suspended in aqueous solutions can be held fixed. Spermatozoa, an often probative cell type in forensic investigations, can be captured inside this optical trap and dragged one by one across millimeter-length distances in order to create a cluster of cells which can be subsequently drawn up into a capillary for collection. Sperm cells are then ejected onto a sterile cover slip, counted, and …