Mandatory Reporting - Cases Hiding In Plain Sight

I recently took a phone call from an individual who wanted to learn about the laws related to the emancipation of a minor.  This person would not identify herself, but described herself as a "case worker" who was calling for a family friend who wished to remain anonymous: a fifteen year old girl who wanted to become emancipated from her parents due to what she described to the case worker as abusive conditions. 

My immediate response was to ask whether the police or Children and Youth Services had been called.  The caller did not know, but did not think so.  Since the caller was a "case worker" who described working with pregnant teens and "at risk" kids, my next question was simple: if there is abuse, don't you have a duty to report the case to CYS and the police?