Mrs Diane Davies told ITV Wales she was delighted the case has been dismissed.
"We have achieved a lot. But that doesn't mean this is the end, I want the police to admit their mistake and that they will go all out and try and solve this case and find the culprit".
More top news
Rain moving east, heavy at times
The Lesbian, Gay, Bisexual and Transgendered communities in Cardiff are celebrating 30 years of campaigning; as part of LGBT History Month.
Cloudy at first, with outbreaks of rain gradually easing during the morning.