No worries New Judge
Bit more info on disclosure-
Standard criminal record disclosures contain information about offences that a person has been found guilty of, or has admitted to doing them.
For adults- Convictions and cautions.
For people below 18- Reprimands and warnings.
These are technicalities and some police may issue a formal warning but its the same as a caution for adults.
Convictions, cautions, warnings and reprimands arise from either a finding or an admission of guilt.
A PND in niether. Therefore does not appear on a standard disclosure.
In terms of disclosing nformation yourself before a CRB check comes back, then you should disclose the PND if you are requiring an enhanced CRB check as it may appear. But not for a standard disclosure, which also concerns jobs also exempt from the rehabilitation of offenders act (you are not an ex-offender) (e.g financial services) but which do not involve contact with young people or vulnerable adults, thereby requiring an enhanced CRM check.
As standard disclosures only contain information about convictions, cautions, warnings and reprimands, you do not have to disclose the PND as a PND does not constitute ANY of the above. If asked have you ever received a conviction, caution, warning or reprimand, you can answer 'no.'