Because of their non-confrontational role they are encouraged to observe and not get directly involved in situation where personal injury may occur.
However, there have been instances where PCSO have been directly involved which has led to an arrest or other action eg:
PCSO often get involved in long-term projects involving business plans. These projects include youth group projects, proposals for new skate boarding areas, lighting for recreational areas, shelters for park areas all of which take time and patience to achieve a conclusion.