If DNA analysis is to be conducted, it may be important to obtain reference samples from prior suspects, and it might be necessary to be creative when obtaining these samples. While a biological sample in the form of blood or saliva can be obtained voluntarily through a consent form, a standard reference sample might already exist if previous forensic analysis, such as serological testing, was performed during the course of the original investigation.
Additionally, elimination samples from anyone who had lawful access to the crime scene, such as family members, may be required if the laboratory determines that there is more than one DNA profile present in the evidence sample. Early identification of the location and status of persons who might be requested to submit an elimination sample could save valuable time and resources if the laboratory needs such information. Consultation with the laboratory is essential to properly coordinating this process.
