Analisis hukum terhadap akta pencabutan keterangan saksi di persidangan yang dibuat dihadapan notaris (studi kasus putusan Mahkamah Konstitusi Nomor 45?PHPU.D-VIII/2010 juncto putusan Mahkamah Agung Nomor 452 K/TUN/2012) = Legal analysis of the deed of revocation of witness testimony at the court by notaries deed (case studies of the constitutional court decision no 45/PHPU.D-VIII/2010 juncto the decision of the supreme court No 452 K/TUN/2012)