Will a police caution show on a CRB check?

Criminal Records Bureau (CRB) checks were replaced by Disclosure and Barring Service (DBS) checks in 2012. Cautions for offences that are on the 'DBS list of offences that will never be filtered' will show up forever.

Caution not on that list will stop showing once 6 years have passed (2 years if you were under 18 at the time of caution).