Joan Kagezi attended Nsuube Primary School from 1973 to 1980 where she attained her Primary Leaving Certificate (PLE).
She later joined Mt. St. Marys’ Namagunga From 1981 to 1987 where she attained both her Ordinary Level and her Advanced Level Certificate (UACE) of Education.
From 1987 to 1990, she attended Makerere University where she obtained a Bachelor in Law (LLB).
In June 1992, she acquired a Diploma in Legal Practice from LDC.
On 12th August 1992, she was appointed a Land officer under the Ministry of Lands and Housing.
In May 1994, she was appointed a State Attorney under the Ministry of Justice and Constitutional Affairs. On 11th February, 2002, she was promoted to the position of Principal State Attorney by public service commission.
On the 16th August 2007, she was promoted to the position of Senior Principal State Attorney.
In January 2015, she was assigned higher duties of Assistant Director of Public Prosecutions in the Department of International Crimes.
At the time of her death she was pursuing a Master’s in Business Administration (MBA) at ESAMI/MSM. She had also applied and interviewed for the position of a High Court judge.
She is survived by four children. Joan Kagezi’s husband died in 2006.