Editing HQ rules from M&M2e (section)

===HOLDING CELLS===
These are cells for holding prisoners, usually temporarily, although some
headquarters might have more permanent holding facilities. The cells are
equipped with Nullify devices (ranked at the campaign’s power level) or
their basic Toughness is increased by 50%, which option should be agreed
upon by both player and GM (both options for two features). Heroes use
holding cells to contain captured villains until they can be turned over to
the proper authorities while villains use them to keep heroes prisoner until
they can dispose of them in their latest deathtrap.