this position the panic handle becomes a stationary door handle as illustrated dog assembly 120 may be moved upward by use of slide member 122 to engage the inward lip of 129 of the stationary actuator post assembly 300 securing the handle in the unlatched position detent locking member 121 is spring loaded at 130 and secures the dogging mechanism 120 in either the dogged or undogged position by engaging in detents 131 or 132 upon movement of slide member 122 upwardly or downwardly as shown by arrows 34 c 34 and 34 d 34 respectively a locking mechanism is illustrated schematically at 301 this locking mechanism is useful to open the door from the exterior side when the door is latched of course it is not necessary to unlock the door when it is unlatched and accordingly as shown in fig3 key actuated mechanism or magnetic card or combination actuated mechanism 301 is ineffective when the door is in the unlatched position when the door is in the latched position as shown in fig4 turning the key member in key mechanism 301 as illustrated schematically moves assembly 101 to the left as illustrated in fig4 engaging lever arm 102 and initiating the sequence of events described above which ultimately unlatches the door as has been described panic handle.