FinCEN's Advisory seems to have created new interest in this topic and that's great. Anyone attempting to identify the law of their state should be able to find it pretty readily with a Google search for:
[state name] and elder financial abuse
In some states banks are mandatory reporters under state law. In others, it's voluntary. To assure continuity in decision making, I suggest you make certain your personnel realize that any suspected financial abuse of the elderly fits squarely under the heading of "suspicious activity" and must be forwarded through normal channels. Raise their knowledge of the symptoms and the issue, but do not dwell on the reporting responsbility or they may get the impression the decision to disclose customer financial information to a third party is theirs, not the bank's.
You could readily come acrss situations where reporting to the state is necessary, but the filing of a SAR is not.