It is important to ask them and to also if you have an attorney to talk to an attorney about what their different roles might be.   There are different social workers for different aspects of the case.

There are screeners that will take the emergency information about the 51A over the phone. 

There are investigators that determine whether or not the 51A should be supported or not supported. 

There are assessment workers; ongoing workers; adoptions workers; supervisors and there are area directors and different managers along with interns.  It is important to know what role that worker has in terms of you having as much information as you can about what the workers are trying to do; or how involved they are going to be. 

It is something that the social worker should answer for you or if you have an attorney, the attorney can gather that information for you as well.