(1)In this section—
“the basin” means the Limehouse Basin of the Board in the London Borough of Tower Hamlets (formerly known as Regents Canal Dock); and
“the lock” means the lock between the basin and the river Thames.
(2)For the avoidance of doubt it is hereby declared that for the purposes of any enactment the limits of jurisdiction of the Board over the basin extend to the lower gates of the lock and thence over all waters to the south of, and lying within 74 metres of an imaginary line drawn between the pivots of, the said gates.