The first is in the Texas system, an Outcast with Cardamine. He did not relinquish them, so I engaged him along with eventual reinforcements. After a battle, the target was destroyed along with his contraband... and my ship.
The second is in the New York system. LSF member Fluid requested help on pursuing an artifact smuggler, and I responded. I attempted to intercept him using trade lanes, but pirates kept disrupting them. He eventually reached Detroit Munitions, but his cargo is still recorded as evidence.