Any hidden game object can potenitally be analyzed. 

Currently the game includes the following effects:

• Analyze the back side of Leads: Look at the back side of the specified number of Leads. (This does not flip the Lead.)
• Analyze the prisoner deck: Look at the specified number of cards from the top of the prisoner deck. (This does not draw the cards.)

Clarifications:

• After other game objects are analyzed you do not automatically reshuffle them (unless specified). This is different to analyzing encounter cards or analyzing modifiers.