Entrapment

Noun

1. The state of being entrapped.

   "The entrapment of the victims in the wreckage made rescue difficult."

2. Action by law enforcement personnel to lead an otherwise innocent person to commit a crime, in order to arrest and prosecute that person for the crime.

   "A detective asking you to buy illegal marijuana for a dying man would be police entrapment."

3. A method of isolating specific cells or molecules from a mixture, especially by immobilization on a gel.