To ask the Scottish Executive, further to the answer to question S1W-12572 by Mr Sam Galbraith on 5 March 2001, how many cases were referred to the Procurator Fiscal service by the Scottish Environment Protection Agency in (a) 2000-01 and (b) 2001-02 and (i) how many and (ii) what percentage of such cases that were taken to court resulted in a conviction.