Ia diangkat jadi hakim konstitusi pilihan pemerintah. Sebelumnya ia diajukan Fraksi PDIP DPR, tapi mengundurkan diri karena akan dicalonkan pemerintah. Walaupun ia mengaku tak pernah dipanggil Presiden Megawati Sukarnoputri sehubungan dengan pencalonan menjadi hakim konstitusi itu.
Pria kelahiran Nganjuk, Jawa Timur 31 Maret 1948, lulusan doktor hukum tata negara Unair ini sebelumnya menjabat anggota Panitia Ad Hoc I Badan Pekerja MPR yang membahas amandemen UUD 1945.
Born in Nganjuk, East Java, 31 March 1948, Harjono finished his primary and secondary education in his place of birth. He finished his doctoral degree in Airlangga University, Surabaya in 1994 after finishing his master degree in Comparative Law in the School of Law, Southern Methodist University, Dallas, Texas, USA in 1981. His bachelor degree was received from the faculty of Law, Airlangga University, Surabaya in 1972.
In addition to teaching in Airlangga University, Surabaya, he was also a post-graduate program lecturer in some universities in Surabaya,
Wakil Presiden Republik Indonesia (1972-1978)Yogyakarta, Manado, Malang, Semarang, and Denpasar. This husband of Dra. Siti Sundari is also a member of the Indonesian People's Consultative Assembly for the period of 1999-2004. Last but not least, he is also a member of the Consortium of National Law Reform and expert team in the Department of Justice in formulating the draft of citizenship law. mk