What is Detection risk?

The likelihood that the procedures performed by the auditor to reduce audit risk to an acceptably low level will not detect a misstatement that exists and could be material. Unlike inherent and control risks, this risk is managed by the auditor themself: by changing the nature, timing and extent of procedures. Under the audit risk model, the higher the risk of material misstatement, the lower the acceptable detection risk must be, and therefore the more extensive substantive testing must be.

Source: 200-son XAS (ISA 200), 13-paragraf (ta'riflar)