Answer: This is referred to as "A CHANGE OF VENUE".
Explanation: Venue is the legal term were a trail is to be made, and we're the defendant and plaintiff brings up their case in a law court.
Change of venue is a legal term that is referred to as, changing the location of a trail, to a place where impartial or sentimental judgement won't be seen. This is mostly done when the news of a case has spread out, and people in such area are already criticizing one person.
Because Sally feels she cannot receive fair trails and moved her case to another location where she can receive a fair trial, this is called change of venue.
The answer: peripheral
The peripheral route to persuasion occurs when the listener decides whether to agree with the message based on other cues besides the strength of the arguments or ideas in the message. For example, a listener may decide to agree with a message because the source appears to be an expert, or is attractive.