EXHIBIT 5.1


                          CAMPION MACDONALD LETTERHEAD


June 28, 2002


PLC Systems Inc.
10 Forge Park
Franklin, MA  02038

Dear Sirs:

         Re:  Registration Statement on Form S-8
              Our File:  20020244

We have acted as Yukon Territory counsel on behalf of PLC Systems Inc., a
corporation organized under the laws of the Yukon Territory, Canada (the
"Company"), in connection with the registration of 400,000 shares of Common
Stock of the Company (the "Common Stock") issuable under the Company's 2000
Employee Stock Purchase Plan (the "Plan"). In connection therewith, we have
examined, among other things, the Registration Statement on Form S-8 (the
"Registration Statement") proposed to be filed by the Company with the
Securities and Exchange Commission on or about June 26, 2002. We have also
examined the proceedings and other actions taken by the Company in connection
with the authorization of the shares of Common Stock issuable under the Plan and
such other matters as we deemed necessary for purposes of rendering this
opinion.

Based upon the foregoing, and in reliance thereon, we are of the opinion, as of
the date hereof, that the shares of Common Stock issuable under the Plan, when
issued, delivered and paid for in accordance with the Plan and in the manner
described in the Registration Statement, will be validly issued, fully paid and
non-assessable.

In rendering this opinion we express no opinion as to the laws of any
jurisdiction other than the laws of the Yukon Territory.

We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement. In giving this consent, we do not admit that we are
within the category of persons whose consent is required under Section 7 of the
Securities Act of 1933, as amended, or the General Rules and Regulations of the
Securities and Exchange Commission.

                                                     Yours very truly,

                                                     CAMPION MACDONALD

                                                     /s/ Gareth C. Howells
                                                     -------------------------
                                                     Gareth C. Howells