Sin

Just as a warning; the currently implemented judgement system is heavily outdated. The workers also weren't able to keep up with all of humanities developments, so many concepts are foreign to them. Things such as acting really cause issues. What the workers need to do, is to skim through the memories of new arrivals. Then, using those memories, they're able to roughly judge how much of a sinner that human was. In the case of acting, killing someone as part of a movie scene can appear just as bad as as really killing someone.

This simple mistake has dammed quite a few individuals to hell.