925 usually means its sterling silver, custume jewelry is usually made of a base metal. The value of costume jewelry is based on condition, manufacturer, and detail/fashion an â¦ d age.No some costume jewelry is valuable depending on the things mentioned above.25 usually means its sterling silver, custume jewelry is usually made of a base metal. The value of costume jewelry is based on condition, manufacturer, and detail/fashion an â¦ d age. No some costume jewelry is valuable depending on the things mentioned above.
Collecting and analyzing DNA evidence tops the list of the lab's forensic toolkit, and its ubiquity in shows like CSI and Cold Case has increased public awareness to the point that many jurors in real-world courtrooms expect to see DNA evidence presented -- whether a case calls for it or not.ince then, DNA evidence has played a bigger and bigger role in many nations' criminal justice systems. It has been used to prove that suspects were involved in crimes and to free people who were wrongly convicted.
The use of biological evidence in DNA and genetic analysis varies, with areas of study including blood typing, gender determination based on chromosome analysis (karyotyping), DNA profiling and, more recently, forensic DNA phenotyping.n the analysis of SNPs, which can consist of up the four alleles, the specific base present in the SNP must be established. This is achieved using DNA sequencing techniques. However DNA sequencing is not generally used in forensic science except in the analysis of mitochondrial DNA.