Q675: Can a person be arrested for just swearing in the street?
You could be arrested for swearing in the street. There are various offences which can be committed involving the use of threatening abusive words or behaviour. The effect on others and the intention of the person swearing would be some of the factors to consider when deciding whether or not an offence had been committed.
There is also an offence of using obscene and profane language in the street to the annoyance of residents. However, a person is only likely to be arrested for this offence if the behaviour occurs in the presence of a police officer.