 Montreal Metro facilities are patrolled daily by 155 STM inspectors and 115 agents of the Montreal Police Service (SPVM) assigned to the subway.They are in contact with the command centre of the Metro which has 2,000 cameras distributed on the network, coupled with a computerized visual recognition system.On station platforms, emergency points are available with a telephone connected to the command centre, an emergency power supply cut-off switch and a fire extinguisher.