Handicap adjustments may only be made in competitions organised by an authorised body (eg club, county etc).
They may only run a qualifying competition where handicaps are adjusted up and down, unless the situation arises where the competition automatically becomes 'reduction only'(RO). They cannot specify this in advance nor can they make it RO after the event. The scores determine this.
yes I understood that, however I was asking (sorry if its not been clear) if it is then pointed out as an illegal comp due to tee box placement does that mean any handicap reductions/increases etc are now null and void?