Final answer:
Both the intoxicated customer and the establishment and staff can be held liable if a customer injures or kills someone. The legislation that might be referred to in court regarding this case is the dram shop law.
Step-by-step explanation:
In a situation where a customer injures or kills someone, both the intoxicated customer and the establishment and staff might be held liable. The intoxicated customer can be held responsible for their actions if they were negligent or engaged in reckless behavior that led to the injury or death. The establishment and staff can also be held liable if they were negligent in their duty to prevent harm, such as serving alcohol to an already intoxicated person.
Regarding legislation, one key law that may be referred to in court is dram shop laws. These laws hold establishments liable for serving alcohol to individuals who are visibly intoxicated or who are under the legal drinking age, if that individual causes harm to others as a result. These laws vary by jurisdiction, so it is important to consult the relevant legislation for specific details in a particular case.
In summary, both the intoxicated customer and the establishment and staff can be held liable if a customer injures or kills someone. The legislation that might be referred to in court regarding this case is the dram shop law.