I believe a friend can help if they can immobolize without harming.
It is not considered a violation of policy for a player to provide non-violent intervention and assistance to the victim of a crime (such as graverobbery). This will include the use of magic or skills to search for, delay, and detain the criminal in order to facilitate the victim exacting revenge and/or obtaining his/her belongings where warranted. A player's preexisting and recognized spouse may however, act on their behalf and be considered to have consent as well, through their relationship to the victim.
Dayle