What does "mi'Go'el" mean?
Rashi: [It means that the Arei Miklat would protect the Rotze'ach] from the closest relative of the victim. 1
Who was permitted to kill him if he found him anywhere else.
What are the implications of "Ad Amdo Lifnei ha'Eidah la'Mishpat"?
Rashi (in Bava Kama, 45a): It implies that Beis-Din may conclude the judgment of the accused in his presence.