(1) How many contractors for Breaking New Ground houses and social housing have been dismissed from site in the (a) 2013-14 and (b) 2014-15 financial years; (2) how many of these dismissals were due to (a) poor workmanship or (b) invoice fraud; (3) what has been the total cost of dismissing the contractors from sites; (4) how many cases have been brought to court by contractors alleging unfair dismissal?