Gerald Gahima alkali ne na Kotun Hukunta Laifukan Yaki na Kotun Bosnia-Herzegovina[1] kuma jigo a Majalisar Ruwanda National Congress, kungiyar siyasa da aka kafa a shekarar 2010 wacce ke wakiltar 'yan adawa da ke gudun hijira ga gwamnatin shugaban RwandanPaul Kagame. Tun daga shekarar 1996, ya zama babban mai bayar da shawara a ma'aikatar shari'a. Daga baya ya zama babban mai gabatar da kara na kasar Rwanda.[2] Gahima dai yana gudun hijira ne tun lokacin da suka samu sabani da Kagame, kuma a baya-bayan nan wata kotu a kasar Rwanda ta yanke masa hukuncin daurin shekaru 20 a gidan yari bisa zargin da ake masa, mai alaka da siyasa.[3] Ya kasance babban ɗan'uwa a Cibiyar Zaman Lafiya ta Amurka daga 2006-2007.[4] Shi ne marubucin "Adalci na wucin gadi a Ruwanda: Accountability for Atrocity" wanda Routledge ya buga a cikin 2013, inda ya fitar da kwarewarsa a tsarin shari'ar Rwanda don tantance wani batun ICTR, gwajin kisan gillar kasa, da gacaca.