At the place im working at currently is using a digico sd7. its a resident show so the system records multitracks via network madi for troubleshooting purposes.. The tracks are recorded pre channel strip.. is it illegal to record etc vocal mics at all times during show? Even when the cast is off stage having alone time.. is it illegal to record the person next to the cast with the lapel mic on without him knowing it.. Etc ambience.. are there any international laws regarding this?