Standard DBS check The certificate will contain details of both spent and unspent convictions, cautions, reprimands and warnings that are held on the Police National Computer, which are not subject to filtering. An individual cannot apply for a standard check by themselves.
In the UK, the Police National Computer (PNC) stores all recordable offences. It remains there until the person becomes 100 years old. However, there is no formal way for a person to request deletion of court convictions. For some exceptional cases, you can clear caution and convictions on a criminal record.