The present application discloses systems and methods for marking an individual with an identifying substance. The system includes a spray delivery device configured to release a pressurized substance in response to an activation signal, an activation device configured to transmit an activation signal to the spray delivery device, and a power supply, configured to provide power to at least one of the activation devices and the spray delivery devices. The method includes storing a pressurized substance, receiving an activation signal at a spray delivery device, and releasing the pressurized substance in response to the received activation signal.