Valparaiso Police Department Procedures

Flashcards covering key procedures related to digital evidence and DNA evidence collection at the Valparaiso Police Department.

Digital Memory Card Handling

Submitted as evidence. Retrieved by the property/evidence room designee who downloads images to the department server. The card is then returned to the submitting officer.

Photo Evidence File

All digital photographs are downloaded to this file on the department server and kept in a separate folder labeled with the case number.

Videotape Processing

Videotapes are properly marked with decals and processed like any other piece of evidence.

DNA Evidence Contamination

Occurs when DNA from another source mixes with DNA relevant to the case, often due to sneezing, coughing, or touching the face.

DNA Evidence Storage

Keep DNA evidence dry and at room temperature in paper bags or envelopes, sealed and labeled correctly.

DNA Evidence - Plastic Bags

Never place DNA evidence in plastic bags as moisture can damage the DNA.

DNA Evidence - Sunlight

Direct sunlight and hot conditions can be harmful to DNA.

DNA Evidence - Precautions

Wear gloves, use disposable instruments, avoid touching areas where DNA may exist, avoid talking/sneezing/coughing over evidence, avoid touching your face.

Elimination Samples

Samples collected to determine whether the evidence came from the suspect or someone else; methods include swabs and blood draws.

CODIS (Combined DNA Index System)

An electronic database of DNA profiles used to identify suspects, similar to the AFIS database and available through the FBI Laboratory.

Evidence Specialist

Trained in the collection of DNA evidence, meeting basic collection and packaging standards.

Submitting DNA Evidence

Requires filling out a lab submission form and DNA Contributor Information sheet, and direct transport to an accredited laboratory.