(1) (a) Who is responsible for security at private residences of Members of Executive Council (MECs) when they are not present and (b) how many MECs currently have protection at their private residences; (2) do (a) the VIP Protection Services or (b) uniformed station-based SA Police Service personnel provide security at MECs’ private residences; if so, (i) under what circumstance and (ii) what financial reimbursement is received for (aa) regular hours of work and (bb) overtime?