Legal Question in Criminal Law in Nebraska

It depends on whether or not a search warrant was needed to confiscate the weapons and arrest your sister. Without seeing all of the reports, I can only guess that the police did not need a warrant to make an arrest or seize the weapons and that the warrant was obtained to search the rest of the house for other weapons or contraband. In that case, your sister did not need to be present when they received the warrant and searched the rest of the home. There are a number of other things to be considered as to whether or not it was a lawful arrest and seizure which her lawyer can discuss with her. If she cannot afford a lawyer, the court will appoint one to represent her.