[ukdzccd]

lol...alright, a STATE law....really does it matter if it's a state or federal law???? It's a law.

You are also right that unless he has a beer can or other identifying alcoholic beverage in his hands, it's not really "proof". Again, does it really matter? If he's holding a cup that has what looks like an alcoholic beverage in it and everyone that sees it assumes that it's alcohol, it really doesn't matter if it is or isn't. I makes a statement about your membership and your organization. I don't know about any of your organizations, but DZ is pretty strict on what they will allow and it doesn't matter if it's identifiable as alcohol or not, or even if you are 21 and older, any beverages that appear to be alcoholic (including solo cups), any behavior that paints the member (and DZ by default) in a negative way, any references to drinking or alcohol (or drugs/other illegal activities) or the before/after-effects of drinking are prohibited, whether the members are in their letters or not.

I imagine the other sororities have a similar social media policy. Fraternities I would guess have something similar but probably not as stringent. Ultimately, you have every right to require a certain level of behavior from your members and how they represent your organization and if they choose to violate that standard, it's your responsibility to enforce and uphold those standards. If members choose to not follow the standard you have set, then send them on their way. Sometimes in matters like this if you give an inch, they'll take a mile.