Both probation and parole bar the person from having access to firearms so the discussion points are still valid.
Her probation officer may be ok with someone in the apartment having guns but probation officers (at least not in the county that I worked in) are not allowed to do house checks by themselves. If the other probation officer accompanying the visitation/search has a qualm with firearms on the premises it could have implications for the boyfriend and girlfriend.
This is just hypothetical though. I did know a lot of probation officers that were extremely against firearms in the house. One guy I worked with that supervised a juvenile on probation (stupid charge, kid shouldn't have gotten probation in the first place imo) strongly suggested that if the parents didn't sell or relocate their firearms the kid could possibly be placed out of home.
Sticks and stones may break bones but hollow points expand on impact.
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