The issue here is manifold.

First of all, it is incorrect to say that this woman's case will be heard by the supreme court on June 3. In fact, it will be heard by the State Court of Appeals on June 3. If that fails, Nigeria has a Federal court of appeals and finally the Supreme Court. Each court is progressively less influenced by the fundamentalist interpretations of Islam, so her sentence is unlikely to be upheld by the Supreme Court. In fact, in these stoning cases where women's rights advocacy groups get involved, no case has made it past the state courts.

Second, letter-writing campaigns in Nigeria have backfired because local jailers don't give a flying f*ck what you and I think; indeed, they think we are infidels and thus lower than the gum on Satan's shoe. One bastard illegally carried out a flogging sentence which was under appeal, specifically to defy foreign letter-writers like us. So I think the best thing to do on this is to wait until her sentence is ACTUALLY upheld by the supreme court (which in all probability, will not happen anyway). At that point, the lady will have nothing to lose if someone decides to stone her just to spite us, so our letters won't backfire..