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Risk Assessment Matrix
Consequence
People Injuries or ailments not
requiring medical treatment.
Minor injury or First Aid Treatment Case.
Serious injury causing hospitalisation or multiple medical treatment cases.
Life threatening injury or multiple serious injuries causing hospitalisation.
Death or multiple life threatening injuries.
Reputation Internal Review
Scrutiny required by internal committees or internal audit
to prevent escalation.
Scrutiny required by external committees or ACT Auditor General’s Office, or
inquest, etc.
Intense public, political and media scrutiny. Eg: front page headlines, TV, etc.
Assembly inquiry or Commission of inquiry or adverse national media.
Business Process
& Systems
Minor errors in systems or processes requiring
corrective action, or minor delay without impact on
overall schedule.
Policy procedural rule occasionally not met or
services do not fully meet needs.
One or more key accountability requirements not met. Inconvenient but
not client welfare threatening.
Strategies not consistent with Government’s agenda.
Trends show service is degraded.
Critical system failure, bad policy advice or ongoing
non-compliance. Business severely affected.
Insignificant Minor Moderate Major Catastrophic
Probability Historical
1 2 3 4 5
Li k
e li
h o
o d
>1 in 10 Is expected to occur in most circumstances
5 Almost Certain
H H E E E
1 in 10 - 100 Will probably
occur 4 Likely M H H E E
1 in 100 – 1,000
Might occur at some time in
the future
3 Possible L M H E E
1 in 1,000 – 10,000
Could occur but doubtful
2 Unlikely L L M H E
1 in 10,000 – 100,000
May occur but only in
exceptional circumstances
1 Rare L L M H H
Adapted from Standards Australia Risk Management AS/NZS 4360: 2004
Appendix A