Last night 2 individuals wearing motorbike helmets came into my enclosed garden and attempted to steal my motorbike, no doubt they will be back. My question is what constitutes to reasonable force. It is unknown if they had tools on them, if this situation happens again can I arm myself and attempt to subdue them until the police arrive? Or would it be classed as affray? As there are multiple of them I don’t think I can make a citizens arrest without some force and threat level. Also would I be able to release my dog on them? I might be over thinking the situation but I suffer from anxiety and depression.... I did report it to 101