(1) (a) How many government laboratories process toxicology samples and (b) where is each laboratory located; (2) what was the total backlog of (a) toxicology samples and (b) samples relating to (i) homicide, (ii) rape and sexual assault and (iii) drunk driving at these laboratories (aa) in the (aaa) 2010-11, (bbb) 2011-12 and (ccc) 2012-13 financial years and (bb) from 1 April 2013 up to the latest specified date for which information is available; (3) on average (a) how many samples have been received in each month and (b) what is the turnaround time for processing samples; (4) (a) what is the total number of (i) vacancies and (ii) temporary appointments at the laboratories and (b) how long has each (i) vacant and (ii) temporary position remained unfilled?