Hi

Ex Probation Officer here!
when they do your vetting they will want all the details of your current close family and partner. They are looking for anything that might lead you to be vulnerable to bribery.
If you are concerned they might pick up on the fact you have been on prison visits before (by searching the system or whatever) there is a box for any additional info and you could mention you have an ex partner whom you used to visit in prison but you no longer have contact with and just play completely dumb about knowledge of him being on the run or wanted on a recall.
their main concern would be that you were or could be coerced into bringing things into the prison.
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