Just for clarification and because I really worry about people working in child protection who lack knowledge of basic checks which should be made for people who wish to work with vulnerable people, I have copied the following form NACRO. I'm sure as you work in child protection you will understand who NACRO are.
What sort of cautions need to be disclosed for DBS purposes?
Simple cautions (18+)
A simple caution is issued by a police officer, usually at a police station, to the individual where they accept responsibility for the offence. If you have received a police caution, you would have had your fingerprints and photograph taken (although this will also happen if you are simply arrested) and you will have signed a document accepting responsibility for the offence. You will not necessarily have been given a copy of your signed caution.
Conditional cautions (18+)
Conditional cautions are issued to adults for certain offences where there is sufficient evidence to charge them and they have admitted the offence. Suitable cases are referred to the Crown Prosecution Service for their agreement to use this disposal. A conditional caution is a caution with specified conditions attached which must be met by the offender.
Reprimands (under 18)
A reprimand is a formal verbal warning given by a police officer to a young person who admits they are guilty of a minor offence.
Final warning (under 18)
A final warning may be issued to a young person who has already received a reprimand, or where the level of offending is deemed higher and therefore a reprimand is inappropriate.
Other cautions or warnings that do not form part of an individual’s Police National Computer record and do not need to be disclosed:
Verbal/street warnings
Harassment warnings
Cannabis warnings
Cautions issued by authorities other than the police (e.g. local council)