<P> In the FBI 's Behavioral Analysis Unit ( BAU ) , JJ acted as the team 's liaison with the media and local police agencies . Though talented and helpful , she was not actually a profiler , having once declined Unit Chief Aaron Hotchner 's suggestion to take the necessary classes in behavioral analysis . She works mostly out of the confines of the police stations and field offices the team visits . However , she does accompany the team on raids , and is proficient with firearms . This is made particularly clear when JJ resolves a hostage situation inside the BAU by killing the hostage - taker , Jason Clark Battle , with a single shot ( Battle is a serial perpetrator of hero homicide , who lured Technical Analyst Penelope Garcia onto a date , and then shot her , in an attempt to keep his crimes from being discovered ) . During season six , JJ is given a promotion to the Pentagon ; however , she returns in season seven as a full - time profiler , having received the necessary training . In season 9 ( `` 200 '' ) , she is then kidnapped , and it is revealed that her year as the DOD Liaison at the Pentagon was a cover story . It turns out she was on a task force in Afghanistan , in search for Bin Laden . The team saves her , and in season 10 , it is revealed she has PTSD , and has n't been dealing with her ordeal being tortured when she was kidnapped , as well as 2 main events that happened when she was in Afghanistan , one of which includes her having a miscarriage , after a convoy was attacked . She tries to work through it with the help of Reid , who calls her on it when she disappears into the morgue one day , for almost a half - hour , after seeing herself on the table , in place of the victim . </P>
<P> In the FBI 's Behavioral Analysis Unit ( BAU ) , JJ acted as the team 's liaison with the media and local police agencies . Though talented and helpful , she was not actually a profiler , having once declined Unit Chief Aaron Hotchner 's suggestion to take the necessary classes in behavioral analysis . She works mostly out of the confines of the police stations and field offices the team visits . However , she does accompany the team on raids , and is proficient with firearms . This is made particularly clear when JJ resolves a hostage situation inside the BAU by killing the hostage - taker , Jason Clark Battle , with a single shot ( Battle is a serial perpetrator of hero homicide , who lured Technical Analyst Penelope Garcia onto a date , and then shot her , in an attempt to keep his crimes from being discovered ) . During season six , JJ is given a promotion to the Pentagon ; however , she returns in season seven as a full - time profiler , having received the necessary training . In season 9 ( `` 200 '' ) , she is then kidnapped , and it is revealed that her year as the DOD Liaison at the Pentagon was a cover story . It turns out she was on a task force in Afghanistan , in search for Bin Laden . The team saves her , and in season 10 , it is revealed she has PTSD , and has n't been dealing with her ordeal being tortured when she was kidnapped , as well as 2 main events that happened when she was in Afghanistan , one of which includes her having a miscarriage , after a convoy was attacked . She tries to work through it with the help of Reid , who calls her on it when she disappears into the morgue one day , for almost a half - hour , after seeing herself on the table , in place of the victim . </P>
when did jj come back to criminal minds
when did jj come back to criminal minds
season 10
season 10