Several years ago I was stopped in public by the police. Someone had 'identified' me as abusing them in terms of their gender two years before that. Had that happened, I suppose it would have been classified as a hate crime. In fact, it was a case of mistaken identity and a senior police officer phoned me the next morning to say so and apologise.
My concern was that, although the previous day I had fully co-operated with the police, one of them said, "We will not arrest you yet, but you will have to come in for an interview". There was no interview because the case was dropped the following morning. There was certainly no arrest or any further proceedings of any kind.
However I was quite shocked with the idea that I could perhaps have been arrested on the grounds of an allegation, merely because someone else made the accusation without any evidence other than their own word.
Question
Is it the case in the UK that someone could call the police and have someone arrested merely on the basis of an accusation of a verbal hate crime, even though there is no evidence whatsoever apart from the word of the accuser?
EDIT
The accusation was something like, "Two years ago this person said hateful things to me about my being transgender". That's all I ever found out. The accuser didn't name me because they didn't know the name of the person who said it. Apparently it was a chance encounter in the street but I don't know the details and the police wouldn't tell me. The accuser had spotted me walking in the street and called the police based on that.