When does it attach?
Same offense requirement: General Rule
Two offenses are not the “same offense” for purposes of the double jeopardy clause if each contains an element the other does not.
E.g. vhiciular manslaugher and hit and run
Same offense requirement: greater and lesser included offenses
Prosecution for the greater offense prcludes later prosecution for the lesser included offense and vice versa
Same sovereign Requiement
Four Exceptions to Double Jeopardy that Permit Retrial
1) Hung jury
2) Manifest Necessity (mistrial)
3) Successful Appeal (unless besd on insufficiency of evidence)
4) Breach of the plea