Crime laboratories must work cases that have no suspect in order to take full advantage of DNA databases. Convicted offender samples can be typed in large batches because large numbers come into the laboratory together and they are in the same format, such as liquid blood. Casework samples, on the other hand, present a different kind of challenge. Each case requires significant up-front work including evidence handling, locating DNA within the submitted evidence, and extraction of DNA from different types of substrates. Often sample mixtures must be dealt with and interpreted. Multiple pieces of evidence may also be involved in a case. In addition, significant work is required after analysis of the samples. Lab reports must be written and court testimony may be required.
In spite of the time and effort required to obtain results on crime scene samples, it is working these cases that make DNA databases effective. Law enforcement agencies must be encouraged to collect and submit evidence to the nation's crime laboratories especially if the statute of limitations is about to expire on a case (D.N.A. Box 18.2). In some cases, thousands of rape kits are sitting in police evidence rooms that are not submitted to crime laboratories (Lovrich et al. 2004).
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This book discusses the futility of curing stammering by common means. It traces various attempts at curing stammering in the past and how wasteful these attempt were, until he discovered a simple program to cure it. The book presents the life of Benjamin Nathaniel Bogue and his struggles with the handicap. Bogue devotes a great deal of text to explain the handicap of stammering, its effects on the body and psychology of the sufferer, and its cure.