It appears that the teacher will be taking this issue up with the assistant principal. However, the principal has not addressed anything with my daughter or her class/school yet to my knowledge or DDs.
. . .
I think I was expecting more of a response than just the teacher asking for more facts than my email provided. I'm not really sure what additional factual information could be provided, as my DD is in class while this is occurring...
I don't think this is principal-worthy yet. He's "big-picture" stuff, and you have only JUST notified them of a problem.
What did you want from them? The teacher needs more facts than your email provides; she needs to verify them herself, scope out the physical situation, and prevent it.
i think you were/are expecting way too much. They just found out about this problem. I think you got a GREAT response--the principal acted immediately, replied to you with a plan, gave the info to the teacher, the teacher has started.
That's really, really good!
They're not ignoring it.
I would suggest that you not expect anything more out of this at all. Except that the pilfering should stop. That's it. They have no obligation to tell you what they did to "fix" this, especially since it will involve another student.
Be content. They're on the case. Be patient while they sort if out.