Stasis Dunk!

Trap a ghost using the Stasis Stream. Daze a ghost by slamming it around with your Capture Stream. Once it's dazed, switch to your Stasis Stream and freeze it. Then drop a trap at it's feet. NOTE: You need to toss the trap directly under the ghost in order for this to work. Try dazing the ghost in a corner, then throwing the trap right in the corner, perhaps even bouncing it off the wall. This helps to more accurately get the ghost and trap lined up.