(1) (a) What is her department doing to reduce (i) collusion and (ii) corruption in the awarding of tenders, (b) how are prices monitored to ensure that contractors do not charge the department inflated prices for material and (c) how many officials have been (i) identified and (ii) removed from their posts as a result of collusion with contractors; (2) whether her department is taking any steps to retrieve the funds from contractors involved in inflating their prices; if not, why not; if so, what are the relevant details?