They will not dissuade a parent from reporting but that is as far as it goes.
Unfortunately they do have a reputation for not cooperating in police investigations. I have read criticism before by the police in U K.
I am sure that whatever the local elders may feel about it , they are forbidden by Legal Dept. At Bethel. When I was a Secretary I remember reading a similar instruction and I resolved then that if ever I was involved in something and the Police wanted to interview me, I would speak up and tell them what I knew.
Why shield a criminal from justice ?