"There are stories about women being drugged at conferences,"
Foxx said. "There are women who have had to barricade themselves
in their hotel rooms to stay safe. One even had to jump out of a window.
It is absolutely unbelievable that these things are happening."
Isn't this a matter for the Police rather than a code of conduct?
In your example hotel security seem like the appropriate body. The standard workplace codes would seem to be immediately transferable to the actual conference. Your examples seem to refer to accommodation rather than the specific conference venue.
There was an incidence of harassment when I was a graduate student. The male G was making lewd comments, more as an exercise in bullying I think, the female J eventually complained (she wasn't worried as such and would tell him where to go, but it just went on and on), so he was forced to move office and given a final warning.