5. Level 4 (population ranging from 500,000 to 999,999) consists of the following services, in addition to the services listed for Levels 1, 2 and 3:(1) Investigations(a) murder or attempted murder committed by criminal organizations operating on an inter-regional basis, in cooperation with the Sûreté du Québec.
(2) Emergency measures(a) crowd control involving high risk of disturbance or riot, in cooperation with the Sûreté du Québec;
(b) intervention involving barricaded and armed suspect, and shots fired.
(3) Support services(a) electronic surveillance;
(b) high-risk intervention;
(c) special weapons and tactics team.