Not so much kidnapping but false imprisonment and unlawful arrest. Some security officers are trained to make arrests (retail loss protection) but there's so much liability that most bigger private security companies don't authorize it. There are such strict legal limits on the power of a security officer that people don't realize. Don't ever expect a security officer to give chase, make arrests, or use force. 9999/10000 they can't and won't (and shouldn't!) do it. We observe, report, detect, and deter. And that's it. Source: I am in private security management.