The question decisive of this case is whether the defendant, Boston Water and Sewer Commission, is an “independent body politic and corporate” and thus by statutory definition not a “public employer” subject to the provisions of G. L. c. 258, as appearing in St. 1978, c. 512, § 15. We have decided that the defendant is such a body in Kargman v. Boston Water and Sewer Commission, ante 51 (1984).

Judgment reversed.