What are the criminal background check requirements for obtaining an STV from the US, especially regarding DUI arrests?

When applying for the STV from the US, a criminal background check is required, typically from the FBI rather than state authorities. There are questions on whether an arrest for DUI without conviction poses a problem for the application. Users suggest following specific consulate guidelines, as not providing the required documentation could lead to rejection. Some applicants have shared their experiences with obtaining the FBI background check, indicating that it is generally a straightforward process.