Investigators & submitters

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Centre of Forensic Sciences

Information for Investigators & Submitters

Case Submission Guidelines

The CFS supports the administration of justice and public safety programs across Ontario. The decision as to whether a case will be accepted is generally informed by this mandate.

Submissions are accepted from official investigative agencies and members of the legal profession.

If as a member of the public you have information that may contribute to an investigation, contact your local police service, a local Coroner, or a member of the legal profession.

Criminal and Public Safety Cases

The CFS accepts criminal and public safety cases from incidents that occurred in Ontario. There is no charge for these services.

Criminal cases may be submitted by official investigative agencies or in some circumstances by defence counsel (see below for details).

Public safety cases include, but are not limited to:

  • Coroner’s investigations;
  • Investigations conducted by the Inspection, Investigation and Enforcement (II&E) community within the Ontario Public Service;
  • Investigations conducted by professional regulatory bodies (e.g., College of Physicians and Surgeons of Ontario);
  • Other investigations (e.g., cases from regional or municipal public health units, practicing physicians, or lawyers).

Civil Cases

Forensic services may be provided, for a fee, to counsel in civil cases when the required services are not readily available elsewhere in the Province of Ontario. The current civil case fee schedule is available on request. Contact the Director’s office at 647-329-1324.


In exceptional circumstances, the CFS may accept cases that fall outside of the criteria stated in the sections above. Examples of such cases include requests for post-conviction testing and cases originating outside Ontario.


The decision to accept any case for examination is based on the following criteria:

  • The analysis requested must fall within one of the Centre’s scientific disciplines
  • The CFS must be able to perform the requested analysis (i.e., a validated, authorized procedure must be in place)
  • There must be sufficient time available to do the requested work
  • Adequate resources to perform the requested examinations and analyses must be available
  • Only items relevant to the investigation and suitable for forensic examination will be accepted

Final decisions as to the cases and items accepted and tests to be conducted are at the discretion of the CFS and are based on the above criteria.

Criminal Cases Submitted by Defence Counsel

The CFS is unable to provide confidential testing for the defence bar. Defence counsel must provide the CFS, prior to acceptance of the case, with a written undertaking to provide a copy of the laboratory report to the assistant Crown attorney. Defence counsel interested in this service are encouraged to contact the Centre Receiving Office at 647-329-1350.

The Toxicology section of the CFS provides written opinions in relation to hypothetical scenarios associated with impaired driving cases. Contact the section at 647-329-1400.