Centre of Forensic Sciences
Investigators & Submitters
Technical Information Sheets
DNA High Volume Service – PDF version (117 kb)
The following Primary or Secondary Designated Offences (as per Section 487.04 of the Criminal Code of Canada) are only accepted into the CFS DNA HVS line:
- 348(1)(d) Breaking and entering a dwelling house
- ALL Listed and Generic Secondary Offences EXCEPT for:
The following Listed and Generic Secondary exceptions are to be submitted into the CFS DNA Violent Crime Service (VCS) line:
- 98.1 Robbery to steal firearm
- 173(1) Indecent Acts
- 266 Assault
- 270 Assaulting a peace officer
- 159(1) Anal Intercourse
- 160(1) Bestiality
- 162 Voyeurism
- 280 Abduction of person under 16
- 281 Abduction of person under 14
- 282 Abduction in contravention of custody order
- 283 Abduction
- All traffic offences that involve direct impact to a person by a vehicle resulting in injury or death
ALL HVS SUBMISSIONS ARE SUBJECT TO THE DNA HVS PROTOCOL
Case Acceptance Criteria:
- Refer to the National DNA Databank (NDDB) website (Designated Offences List) and Section 487.04 of the Criminal Code of Canada to determine if the case under investigation should be submitted as a DNA HVS offence.
- The item will be accepted for analysis provided the Crime scene index requirements of the DNA Identification Act (1998, c. 37) are met.
- The item can only be submitted for analysis if there is a reasonable expectation that DNA was deposited by the perpetrator during the commission of a designated offence
Requirement: The following must be documented on the CFS submission form:
- Confirmation (as per check box provided) that the case qualifies as a DNA designated offence at the time of submission.
- How the item is potentially related to the commission of the designated offence.
- The location the item was collected from e.g. the point of entry; inside a stolen vehicle; inside the structure/grounds of a commercial or residential building.
Failure to adhere to the above can result in inaccurate investigative information and consequently a waste of police investigative resources, and reduced efficiency at CFS.
Item Type Criteria:
- Collection methods are outlined in the DNA HVS Protocol.
- Only cigarette butts, envelope flaps and swabs will be accepted. Acceptance of swabs is restricted to those collected from:
- Possible blood stains
- Weapons (defined as guns and knives)
- Headwear and masks
- Drink containers
- Food utensils or partially eaten food
- Pipes / drug pipes
The following are examples of item types that will NOT be accepted:
- Swab of vehicle steering wheel/gear stick
- Swab of door handle
- Swab from clothing
- Swab from tool handle e.g. crowbar; screwdriver
- The Submission process is outlined in the DNA HVS Protocol.
- Provided the designated offence qualifies as a DNA HVS offence, and that appropriate item type(s) have been collected there is no restriction on the number of items submitted per case.
Requirement: Any submission of 10 or more items will require a consultation with the HVS Unit. Consultation is recommended prior to submission.
- ALL items in a HVS case must be submitted together in a SINGLE submission. All submitted items will be processed concurrently. Consultation is required for all supplemental submissions (except comparison samples).
- Pre-consultation with the HVS Unit is recommended for offences that will, or may, require testing by multiple scientific sections (e.g. the Biology and Chemistry Sections).
- All wet swabs should be air dried prior to packaging. Failure to do so will reduce the ability to obtain a DNA result.
- Only package one item per container. A numbered seal must be attached to each container or to the outer container if multiple items are submitted.
- Comparison samples from all persons of interest, suspects and accused persons will be accepted.
- An HVS approval process, which includes pre-consultation with the HVS Unit manager, must be followed when an exception to the standard service is requested.
Any submission that does not meet both the DNA HVS offence and item type criteria will be returned to the submitting agency.
National DNA Databank Criteria:
- As per the DNA Identification Act (1998, c.37):
The crime scene index shall contain DNA profiles derived from bodily substances that are found:
- at any place where a designated offence was committed;
- on or within the body of the victim of a designated offence;
- on anything worn or carried by the victim at the time when a designated offence was committed; or
- on or within the body of any person or thing or at any place associated with the commission of a designated offence.
- It is the responsibility of the police agency to request that the laboratory remove any DNA profiles from the National DNA Databank that do not qualify to be uploaded as a designated offence (as per Section 487.04 of the Criminal Code of Canada).
BIOLOGY SECTION PROCESS
- The DNA High Volume Service is an optimised, high throughput, automated service. The Service targets only those item types which have demonstrated a reasonable scientific expectation of success using current high throughput DNA technologies.
- Only body fluid testing for the presence of blood is performed on HVS submissions. If identification of a body fluid may be critical to an investigation the client should consult with the HVS Unit prior to submission.
BIOLOGY SECTION PROCESS
- The following will be routinely discarded on completion of testing:
- remainder of cigarette butt
- remainder of portion of envelope flap
- remainder of swab stick
- any “possible blood” swab that tests negative for blood
- original packaging
- Original packaging and any remaining item will only be retained in the following circumstances:
- when, upon receipt at CFS, it is determined that the integrity of the packaging has been compromised e.g. damage during transit
- when, upon receipt at CFS, contamination is observed on the outer packaging or on the inner item.
- Continuity will be documented using the CFS Laboratory Information Management System (LIMS).
- Extracted DNA from crime scene samples will be retained in storage at the CFS.
- A client submission receipt will be returned to the submitter once the case/item is logged into the CFS Centre Receiving Office.
BIOLOGY SECTION PROCESS
- Results will be reported to the police agency DNA Coordinator using a standardized letter format.
- As the DNA HVS is an automated high throughput system employing optimised parameters, the service does not include repeat analysis of the same item.
- DNA analysis is only performed on samples that meet a DNA HVS quantitation threshold. Where applicable, the wording in reports will reflect when the amount of DNA detected failed to meet the DNA HVS quantitation threshold.
- The DNA HVS does not include interpretation of complex mixtures.
- The DNA HVS letter issued to the agency DNA Coordinator will indicate:
- If blood was detected (when applicable)
- If the DNA result is suitable for comparison
- Whether or not the DNA profile was uploaded to the National DNA Databank and the date of upload, if applicable
- If an interpreted DNA profile is from a male or a female
- The reason why a DNA result was not obtained
- The DNA HVS letter will code the item submission as per the following table:
DNA HVS code
Possible blood swab
Drinks container swab
Portion of envelope flap
Food or food utensil swab
Possible saliva/spittle swab
- The DNA HVS letter will include internet hyperlinks to the following Information Sheets on the CFS website:
- The CFS turnaround target for offences processed using the DNA HVS is 90 days. Priority analyses are not offered through the DNA HVS.
For clarification contact the DNA HVS Unit at (416) 428-5154 or email at CFS.Biology.HighVolume@ontario.ca