Question.... Since your by-laws don't seem to cover some items do they by any chance say something about "good standing" as a member. (Or something along those lines?)
I know our by-laws state that any member not in "good standing" (which is never defined in the by-laws) can have their membership revoked... for us no membership means they can't be on the board. And I think theft would certainly move the current one of the "good standing" concept.
Otherwise, I would suggest that someone make the motion to have her removed based on the circumstances. IF it isn't covered in the by-laws on how to do it then how can the motion be wrong, if it is a general motion. (If that makes any sense.)
The only other question... why aren't the police being involved... it is theft after all!
*EDIT*
Looking at my Robert's Rules book it says the following that would most likely apply:
Except as the bylaws may provide otherwise, any regularly elected office of a permanent society can be desposed from office for cause - that is, misconduct or neglect of duty in office - as follows:
- If the bylaws provide that officers shall serve "for ____ years OR until their successors are elcted," the election of the officer in question can be rescinded adn a successor can thereafter be elected for teh reaminder of the term. The vote required for removing teh offender from office in such a case is the same as for any other motion to Rescind.
- If, however, the bylaws provide that officers shall serve only a fixed term, such as "for two years" (which is not recommended wording), of if they provide that officers shall serve "for ____ years AND until their successors are elected," an officer can be deposed from office only by following teh procedures for dealing with offenses by members outside a meeting; that is, an investigating committee must be appointed, it must prefer chards, and a formal trail must be held.
(Page 642 & 643 of Robert's Rules, referred from newly revised Robert's Rules on pages 122 & 123.)