She received an LLB (Hons) degree from the University of Hull, United Kingdom in 1997, and a Masters in International Business Law there in 1998.

[2] In August 2009, on the recommendation of the Judicial Service Commission, Singhateh was appointed Judge of the High Court by President Yaya Jammeh.

[6] In August 2013 Singhateh was appointed to the Cabinet of the Government of The Gambia to occupy the position of Attorney General and Minister of Justice.

In 2015 her ministry spearheaded amendments in the Sexual Offences Act, outlawing the practice of female genital mutilation in the Gambia.

In March 2020, the United Nations Human Rights Council appointed Singhateh the UN Special Rapporteur on the Sale and Sexual Exploitation of Children, replacing Maud de Boer-Buquicchio who had held the position since May 2014.