**I'd say NO.**

The masks aren't the same at all.

The mask on POI is a soft rubber mask...not hard plastic like the ones in *The Dark Knight*

[![enter image description here][1]][1]

You can watch the whole episode [**HERE**][2]...the prank tales place about 8 minutes in

Also, if you look carefully at the DK robbery sequence you can see that, in fact, all the masks are not the same. They have different expressions and even different decoration. It just looks like a bunch random generic masks.

[![enter image description here][3]][3] [![enter image description here][4]][4][![enter image description here][5]][5][![enter image description here][6]][6]

https://www.youtube.com/watch?v=Yqvbv-SB4bg


  [1]: https://i.sstatic.net/6wqgI.png
  [2]: http://watchseries.cr/series/person-of-interest/season/1/episode/20
  [3]: https://i.sstatic.net/NoPk8.png
  [4]: https://i.sstatic.net/XnOR6.png
  [5]: https://i.sstatic.net/EaFjz.png
  [6]: https://i.sstatic.net/LtRV6.png