Has a major incident or standby been declared? If not, consider ETHANE.

Use a location system understood by all responders.

Example: Fire, disorder, RTC, flood, terrorist incident.

Consider likelihood + severity (e.g. fire spread, weapons, chemicals).

Include inaccessible routes and rendezvous points.

Use classification: P1, P2, P3, deceased.

Include police, fire, ambulance + wider partners.