It's not exactly subtle. Leia says it outright: > Leia: They let us go. It was the only reason for the ease of our escape. > Han: Easy? You call that easy? >

It's not exactly subtle. Leia says it outright: > Leia: They let us go. It was the only reason for the ease of our escape. > Han: Easy? You call that easy? > Leia: They're tracking us.