Incidents and near-misses reported per thousand units of activity, per business unit, against the firm's own median. Read beside the findings rate from audit and monitoring: a low reporting rate with normal findings is under-reporting, a culture measure, and reports per finding is the number on the table.
The unit that reports nothing and has findings above the norm is the one to visit.
A register that went quiet over a year narrows to a date, and the date narrows to a change.
Incidents and near-misses reported per thousand units of activity, per business unit, against the firm's own median.
One unit reports 4.1 incidents per thousand transactions, near the firm's median of 3.8. Another reports 0.2. The second is not twenty times safer.
Raw counts, which make the busiest and most diligent unit look worst.