A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Alex Jones (rules official), 31 March 2015
Labor Crew has been given errata, effective upon legality (ie immediately), so that its ability reads: "Interrupt, Negate the movement into an attacking army of a target Personality at any location."
This means that you can use it, for example, to stop Personalities who have been sent home, returning to the battle.
Alex