Here in lies the problem.
North Carolina has this law. Lets say you get someone loaded up piss drunk, and you knowingly do nothing (call the cops etc) when said individual leaves out the door to go drink and drive. Or you give someone alcohol that SHOULD HAVE BEEN cut off. The point where the individual should have been cut off is at the discretion of the bartender. If they are not cut off, or if no action is taken to prevent drinking and driving then your establishment can be held liable.
There are several issues that come up in reference to this.
A. Q: How does one know when an individual is legally intoxicated and should be cut off.
A: Cops in Virginia and other states can arrest someone for being "drunk in public." To be arrested for being DIP, you do not need to perform standard field sobriety tests on that individual. You just need to show that the person was exhibiting signs of intoxication "slurred speech, bloodshot glassy eyes, disorderly loud boisterous behavior."
Q: Bartenders aren't cops, so how would they know?
A: Bartenders are given training and should have no issue recognizing the signs of intoxication. Many drinks served in small time frame, individual yelling, screaming, demanding more alcohol, drunken behavior that one might expect.
There is case law that has traditionally gone back and forth over whether statements of an intoxicated individual can be used in court, and whether an intoxicated individual can be held responsible for their actions. Courts could also argue points over if an individual was intoxicated to the point where they should not drive, at what point would you call them an ambulance? How drunk does someone have to be to be considered "alcohol poisoning?" Many EMS providers won't let an "intoxicated" individual sign a refusal of care sheet. There is case law in Maryland that goes back and forth for example to argue whether an individual who is under the influence of phencyclidine can be held responsible for their actions while under the influence of that drug. If an intoxicated man tells you that he hasn't had anything to drink, and is lying, can the statement be brought into court?
In reference to the gun store argument, courts might argue that do gun stores not have the responsibility to ensure that they are not selling a firearm to a convicted felon? Do gun stores not have the right to refuse sale if they believe the firearm is the subject of a straw purchase? The answer is they do, and they do often do refuse sale of suspected straw purchase weapons. Business owners in Maryland have the right to refuse service to anyone for any reason. The sad part is, instead of using common sense and policing themselves, they are in it to make the quick buck. If they see someone arrive in a vehicle, alone, and load them up on booze over a 5 hour period, turning a blind eye to criminal behavior when the person leaves and goes to drive home is this ethically right?
Im not saying that people shouldn't be held responsible for their actions. I also think and would hope that bartenders and staff that observe reckless behavior would do the right thing and call police. Sadly they don't want to "snitch" on their customers, I guess its bad business practice. With that being said, saving their customers life so they have a repeat customer is more important than hiding and concealing criminal behavior for another individual.
Some bars employ cops who stand at the door and often do field sobriety tests on individuals attempting to leave impaired. I disagree with this because anyone can go take 5 shots of vodka and pass a field sobriety test in the first 20 minutes because alcohol is a time delayed drug and takes time to take full effect. The results of that sobriety test may change as the alcohol is absorbed into the system. Thats the problem with this. So if the cop says your OK to drive and you just drank, he might be incorrect as there are many variable factors that go into alcohol/drug absorption such as gender, weight, tolerance, BMI, proof of alcohol, stomach contents, etc. A sobriety test or breath test may not be accurate on someone "heading out the door" of the bar, even if done by a cop.
There are alot of questions that go along with this.
I would imagine its just a matter of time before a senators son or daughter is killed by some drunk who got loaded up at some backwoods dive bar and the bartender didn't even call 911, even after knowing that the person was driving. You can bet more laws will be made and someone other than the driver will be held accountable, because some judge will rule. Alls it takes is one ruling and its on.