USE IMMUNITY  AND TRANSACTIONAL IMMUNITY

USE IMMUNITY

Prohibits  the  use  of  the  witness’ compelled testimony and its fruits in any  manner  in  connection  with  the criminal prosecution of the witness
 
The  witness  can  still  be  prosecuted but  his  compelled  testimony  may not be used against him

TRANSACTIONAL IMMUNITY

Immunity   to   the   witness   from prosecution for an offense to which his compelled testimony relates 

The  witness  cannot  be  prosecuted at all