The following is a quote from the shepherding book chapter 7:
19. In all cases of judicial reproof, the wrongdoer
is disqualified from special privileges. These include
pioneering, offering congregation prayer, and sharing
in any parts on the Service Meeting until he has
made further spiritual progress. This also includes
other congregational assignments that might be given
to those who are exemplary. In addition, some judicial
restrictions will be imposed in all cases of judicial
reproof. Judicial restrictions may include not
commenting at congregation meetings and not giving
student talks in the Theocratic Ministry School.
However, the judicial committee determines what judicial
restrictions to impose. When the elders inform
a repentant wrongdoer of restrictions, it would be
helpful to tell him the date of the next meeting,
at which his progress will be reviewed. It may be
discouraging to the repentant wrongdoer if restrictions
are imposed for a prolonged period of time. It
would be an exceptional case when many months
have passed and restrictions have not been gradually
lifted.
Restricting field service isn't mentioned but it has definitely been said (probably in c/o meetings with elders) that it is never imposed as a restriction. This would include (in their words not mine) a repentant pedophile (felt sick just typing that). So stopping someone going in field service for even repeated "extreme" feminine behaviour is unprecedented.