Contraband Police invites users to become customs officers. Dozens or even hundreds of vehicles cross the border every day, and each of them must be checked for contraband. As a border control officer, the player will have to check drivers' documents, inspect cars, assessing their technical condition and looking for places where possible contraband is stored. The last step will be to make a decision regarding whether or not a person will enter the country.

Every time, new vehicles will appear on the horizon in Contraband Police. Heavy trucks, jeeps, miniature cars – all need to be carefully inspected, regardless of their seemingly inconspicuous appearance. After all, even in the most primitive cars you can hide drugs, stolen money, etc. For example, suspecting something is wrong, the player can take a knife and open the seat or puncture the wheel. If prohibited items are found there, the driver can be handcuffed and sent to jail. Sometimes, it may not be a matter of smuggling at all. For example, the driver will be found to have forged documents, or some of the information indicated in the papers will not match. In this case, illegal immigrants must be moved to a cell so that they can be deported in the future. The property found should in turn be confiscated. At the same time, situations will change each time, and some of those who want to cross the border will be clean before the law (yes, this option also exists).