Retrieval of DNA from touched objects, for the purpose of generating genetic profiles, can be improved. The amount of DNA deposited varies depending on parameters that include; the individual, the area of contact, the history of previous touches, the material being touched, moisture levels and the presence of fingerprint powder. Much of what is deposited is not retrieved from an object by a single swabbing. This can be improved by employing multiple swabbing techniques. Furthermore, much of the DNA that is collected by a swab is not retrieved from the swab during the extraction phase. Quantiblot quantitation results of the retrieved DNA are not accurate and should be used as a guide only, for further analyses. Further improvement in the collection and extraction techniques of trace amounts of sample should be sought to increase the chance of providing probative value to criminal investigations.