Denied
There are no rules preventing GENSEC to go into Lower D-Block and killing D-Class as long as they present an active threat, or have taken threatening action. The evidence provided, which is simply the player in question being on the elevator while it's in lower D-Block, not even in lower D-Block herself, does not constitute evidence of any violation. Further, the reporters multiple statements of, "I'm pretty sure" and "I assumed" for show there is not evidence to support any rule violations.