Follow up with them and the local prosecutor to make sure charges are filed, and that she is arrested.

Postal Inspection Service and/or local police are not going to open an investigation and/or arrest anybody because packages may or may not have been delivered to the wrong address.

After beating up the resident, the gang was arrested at the curb as they were fleeing. 

But the way you posted this sounds like a bait and switch sleaze ball approach.Reminds me of the Washington DC cops who sent out   mailers to individuals that were wanted for jumping bail and petty type stuff.. they offered free tickets to a Washington redskins game just had to show up show proof of ID and you won... they arrested 500 to 800 low lifes in that one sting..

I realize that this wasn't a serious question, but in New Hampshire removing legally-posted political campaign signs is theft, and people have been arrested for it.  

It would give us something to watch on the news when you get arrested...or worse.The most effective way, is the legal way.

You should also be able to search based on name/dob if they've been arrested since they got here.

While the feds have pretty much said that they won't be bothering folks in Colorado or Washington, there is always **some** small amount of risk that a SWAT team will kick in your door to arrest somebody eating a brownie on the couch.  

“HUD will use the full force of the law to protect the fair housing rights of folks who’ve been arrested or who’re returning to their communities after serving time in jail or prison,” HUD Secretary Julian Castro warned.By “full force,” he means the “disparate impact” theory of civil-rights enforcement, which HUD claims is written into the Fair Housing Act even though the phrase appears nowhere in the statute.Disparate impact holds businesses liable for colorblind policies and practices that may have adverse outcomes for minorities — in this case, screening all apartment applicants for criminal histories.

The police show up and arrest the daughters for trespassing.