To ask the Scottish Executive, further to the answer to question S1W-25143 by Mr Jim Wallace on 1 May 2002, how many (a) individuals and (b) companies have been convicted of offences relating to the pollution of rivers and other waterways in (i) 2001, (ii) 2002, (iii) 2003 and (iv) 2004, listing the rivers and waterways concerned and the range of penalties...