Charter Service Of Two Helicopters To Carry Out Police Services Of Video Surveillance, Rescue, Air Transport, Rapid Descent With Rope And Transport Of External Cargo, For The Police Of The Generalitat-Mossos D'Esquadra (Pg-Me), Of The General Directorate Of Police (Dgp), For The Years 2027, 2028, 2029 And 2030 (It-2027-4)