OPTs

Not necessarily true.

It is common for all services to send senior staff to them even if it looks like they are not needed.

OTLs would commonly be seen at incidents where there are no casualties along with a DCA and potentially other Ambulance assets like HART/SORT.

Reasoning behind this is it is a proactive response to a potential major incident and enables ease of communication to ensure that if things do go bad then there is a manager on scene to coordinate a further response and ensure safe working.