Sounds classic social services. They still for some reason work on the model of keep sex offender out the home and never let them back in. Your kids are of an age where they can speak their own mind and also be taught in an age appropriate way what should and should not be appropriate sex wise and content wise for them. Thus keeping him out the house if the police are happy to change bail conditions is mad.

Are your kids on a CIN plan or any assessments been done yet by SS. The whole process of SS being involved is that the childs voice should be central to their assessments. Childrens wishes and views have to be captured. Its ridiculuous what SS are doing considering the age of your children. SS work on the balance of probabilities and can and do often ignore black and white outcomes in criminal court. If someone has shown risky behaviour- SS will latch onto it and not let go. Ask the SW on how they are capturing your childrens wishes and what they are doing about it.