Exhibit 5.1
Opinion of Virginia K. Sourlis, Esq.

                OPINION AND CONSENT OF VIRGINIA K. SOURLIS, ESQ.

December 30, 2004

Liska Biometry, Inc.
CANADA

Gentlemen:

I have acted as securities counsel for Liska Biometry, Inc., a Florida
corporation (the "Company"), in connection with the Company's Registration
Statement on Form S-8 (the "Registration Statement"), pursuant to the Securities
Act of 1933, as amended, relating to common stock to be issued pursuant to
certain consulting and director agreements (the "Agreements"). This opinion is
being furnished in response to Item 601 of Regulation S-K and the instructions
to Form S-8. I am familiar with the proceedings to date with respect to the
proposed Agreements and the issuance of common stock pursuant thereto, and have
examined such records, documents and matters of law and satisfied myself as to
such matters of fact as I have considered relevant for purposes of this opinion.

On the basis of the foregoing, we are of the opinion that:

      1.    The Company is a corporation duly organized and existing under the
            laws of the State of Florida.

      2.    The Agreements have been duly and validly authorized and adopted,
            and the shares of common stock of the Company (the "Shares") that
            may be issued and sold from time to time in accordance with the
            Agreements have been duly authorized for issuance and will, when
            issued, sold and paid for in accordance with the Agreements, be
            validly issued, fully paid and non-assessable.

The foregoing opinion is limited to the federal laws of the United States and
the corporate laws of the State of New Jersey, and I am not expressing any
opinion as to the effect of the laws of any other jurisdiction.

In rendering the foregoing opinion, I have relied to the extent I deem such
reliance appropriate as to certain matters on statements, representations and
other information obtained from public officials, officers of the Company and
other sources believed by me to be responsible.

I hereby consent to the filing of this opinion as an exhibit to the Registration
Statement. In giving such consent, I do not thereby admit that I am in the
category of persons whose consent is required under Section 7 of the Act.

Very truly y ours,

/s/ Virginia K. Sourlis, Esq.