When you cast this spell, every pocket in any clothing you wear becomes its own pocket dimension for one hour. Each pocket has its own individual pocket dimension, and any of its contents are shunted into its pocket dimension once this spell is cast. During that time, only you can retrieve items from your pockets. Any other person who reaches into your pockets finds them empty during the duration of this spell. This spell ends early if you remove any clothing. 

Aodh the tailor was a skilled craftsman. To improve himself and better serve his clientele he often dabbled in magic. Driven halfway insane by the frequent pickpocketing in his hometown of Sigil, he invented this particularly confounding spell. Many a time was he delighted to allow a would-be thief to palm, soft-hand, and otherwise plunder his pockets only to discover them empty, then laugh to himself as those same thieves saw him spend his hard-earned gold out of the very same pockets they took to be barren.