JJ's Departure from Criminal Minds
Jennifer "JJ" Jareau left Criminal Minds at the end of season 5. She accepted a position with the Pentagon as a liaison to the Department of Defense. Her exit was a major storyline for the BAU team.
JJ's Return to the BAU
JJ returned to Criminal Minds in season 6. She came back in the episode "JJ" and resumed her role as the team's Communications Liaison. Her return was a direct result of a case that required her expertise.
JJ's Continued Role in the Series
After her return, JJ remained a core member of the team for the rest of the original series run. She continued to handle critical cases and manage the team's profile requests. Fans can find detailed episode guides on the CBS official Criminal Minds page.
