DS1 came in and said that the woman next door hunted for him outside and told him to "stop picking on my children or I will take it further".
According to him (and DS2, who would definately tell me if DS1 had done something wrong), DS1 and Ds2, and another friend were playing just round the corner on the grass, the neighbours youngest child, who isn't aloowed there had followed him. Their middle daughter had came along and had started shouting at her brother that he wasn't allowed there, and at my DSes telling them that "she was telling on them for taking X there". DS1 grabbed the handlebars of her bike and said "your brother followed us, we didn't bring him".
She then went in and told her mum that DS1 had pushed her off. DS1, DS2 and their friend all say the same story - and DS2 isn't the kind to let his brother off lightly. However, the mother hadn't said anything to us at all. The mother ahd gone and hunted DS1 herself