Command and Control
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Command & Control in Major Incidents
Core Idea
Establish Command (vertical) and Control (horizontal) early to turn chaos → mild confusion and keep decisions flowing. You command your own agency; you control the multi-agency effort with the most appropriate lead agency for the current phase (often Fire → Ambulance → Police → Local Authority across hazard, care, crime, and recovery). Don’t wait for perfect information—act on what you have.
Definitions
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Command = vertical authority within a single organisation (up/down your chain).
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Control = horizontal coordination across organisations. You cannot command other services, but you can agree who leads control for the phase.
Why Early C2 Matters
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Early, clear C2 prevents decision inertia and cross-agency blind spots (e.g., 9/11 showed how failed information-sharing costs lives).
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Always include the “person with the problem” (site owner/manager, head of security, process lead) to surface local hazards, access, and constraints.
Tiers of Command (use colours to avoid op/tac confusion)
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Bronze (Inner Cordon) – the hazardous forward area; one way in/out with entry control and full logging.
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Silver (Tactical/Working Area) – set-back zone housing command post, CCP/CCS, loading/parking. Silver may do a brief commander’s walk, then step back to keep the big picture.
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Gold (Strategic) – usually at HQ/council/police facilities; may be single-agency or SCG (multi-agency) depending on scale.
Only deploy the tiers you need for the incident’s size and impact.
Cordons & Access
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Inner cordon (hazard): typically red/white tape.
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Outer cordon (area control): typically blue/white tape.
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Police usually control movement; carry ID—Trojan vehicles and spoofing are real risks.
Lead Agency Phasing
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Lead can shift with the phase (hazards → Fire; mass care → Ambulance; crime scene → Police; recovery → Local Authority).
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The handover isn’t a hard line—maintain continuous inter-agency dialogue to be clear who is leading now.
Communications
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Vertical: use your internal comms processes.
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Horizontal: co-locate commanders (Bronze/Silver/Gold), communicate in plain English (ditch acronyms), share SITREPs to create a shared situational awareness.
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Include the site representative to avoid missing a third of the picture.
Command Posts & Vehicles
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First ambulance on scene = temporary command post/acting incident commander until a current, competent commander relieves them.
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Co-locate command vehicles where possible; shared workspace and connectivity improve control.
Handover/Relief
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Minimise command changes; each handover leaks detail.
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When rotating the command support bubble (comms, TAC adviser, loggist), stagger reliefs (e.g., 30–45 min overlap) to preserve continuity.
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Keep a member of the first crew with Silver (as loggist/radio op): they retain invaluable early context.
Scene Layout Implications
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Bronze: hazardous work, logged access.
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Silver: CCP/CCS, parking, loading, comms—laid out to support flow and control.
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Gold: off-site strategic direction and inter-agency alignment.
Practical Prep Notes
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Know where the Gold/SCG site is and how to access it at 03:00.
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Embed in training that first crews assume acting command, not just clinical tasks.
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