Wiktionary
mislaid property
n. (context legal English) Property that is found in such a state as to make it likely that the original owner intentionally placed it somewhere, but then forgot to retrieve it from that place, and would be able to locate the property.
Usage examples of "mislaid property".
But whoever they were, they appear to have walked in while some of that mislaid property I mentioned was in the process of walking out, because it was all piled in a heap in the center of the guardroom when Gosanth's relief turned up.
But whoever they were, they appear to have walked in while some of that mislaid property I mentioned was in the process of walking out, because it was all piled in a heap in the center of the guardroom when Gosanths relief turned up.