The pen is mightier than the pencil
In this case an eraser is more powerful than a pen.
Altering a defendant's statements to get a better result for a prosecutor or in this case deportation officers is a crime called FORGERY. Forgery is usually an easy deed to identify, and even if criminal charges are not pressed, there are appropriate sanctions for anyone who did the forgery -- two words that someone has made much of on one of his reality-TV shows.
"YOU'RE FIRED!"
Rectification of the wrong done to the victim, including the return of funds or other assets taken from the victim and the release of the person from a contract that must be deem void) is appropriate.
Gang affiliation would of course be valid cause to denaturalize a citizen born elsewhere for subsequent deportation, let alone to rush the deportation of an illegal alien.