A fake ID is a type of identification card that has been made to look and feel like a real ID. They are used by people looking to allow themselves to drink alcohol and get into clubs with a minor and other such things. There are many ways to obtain a Fake ID, which is becoming more and more common. Because they are illegal, however, getting identified with one can lead to some serious consequences. There are numerous ways to create fake IDs, and they all require various amounts of skill. The most basic method is to use an existing ID and changing the details using sharpie or photoshop. The name is changed address, address, and features (gender/age) and so on.

If you're caught, not only could the vendor of the tobacco (or in the case of the bars) confiscate the fake ID and report it to local or state police, but they may also charge you with a Class B misdemeanor for buying cigarettes while you're a minor. It could be a serious legal consequences like the case if a establishment suspects someone of having a fake ID or lying about their age to buy alcohol and tobacco products as well as other products that are age-restricted or products, they can call the police. If you're arrestedby the police, they could seize all contraband items as well as your car.
They are typically used for things such as gaining entry into bars and clubs as well as purchasing alcohol since people who have real IDs can legally do this legally. Because they don't have any official document it is unlawful to use identification documents made up of false information or fake documents for this specific purpose. In the event of being caught using an identity card that is fake could lead any number of things, from getting penalized with a misdemeanor to being charged as an adult for the possession of alcohol in the form of the age of minor. Generally speaking, though the punishments can vary based on where you are caught.
If you are in the club or bar, the establishment's doorman may remove your Fake id number and kick you out. The cops won't generally be called unless the individual who found you with it decides to press charges or you fail to give them the property that they know is not yours. If the cops are called however, they have the right to arrest you in person, regardless of the state you're in. It is generally the case any place where alcohol is served bars and clubs fall in this category. However, do coffee shops as well as restaurants that have liquor licenses.

If you are arrested for possessing a Fake ID due to an altercation with another patron (such as when they tried to get you killed) you is taken away out of your possession once it has been logged into evidence. If the police arrest you for another reason, they'll likely allow you to return it youself after showing them some evidence of identification (whether your real one as well). If you're arrested for using an identity card that is fake in the club or bar scene (such as trying to buy cigarettes underage) there's an even greater chance that things could escalate rapidly especially if the owners of the establishment believe you're buying items to re-sell illegally.
Anyone caught with such a crime is required to be charged with a minimum of shoplifting, and could also be charged with Trespassing charges based on nature of the crime. Police officers are present in these types of establishments on a regular basis, though because of how often people are caught using fake IDs in order to purchase goods for resale. It is therefore always advisable to be prepared for the worst-case scenario in any situation where you might have obtained illegally or fake identification on your own.