Prior to his appointment, Minister Tarawalley served as the Solicitor-General of Sierra Leone, being the principal assistant to the Attorney-General and Minister of Justice in determining the legal position of the state, overseeing all civil and criminal proceedings on behalf of the state. He represented the Government of Sierra Leone on several engagements such as supervising the Commissions of Inquiry set up by the Government of Sierra Leone in 2019 to inquire into the services of civil and public servants and politicians in promoting accountability in governance. As an esteemed member of the legal profession in Sierra Leone, he was elected Vice President of the Sierra Leone Bar Association in 2014–2015 and in 2015–2016 respectively. As the Attorney General and Minister of Justice, Mohamed-Lamin is a member of the Council of Legal Education overseeing the mandates of the Sierra Leone Law School and its operations. He serves as the Deputy Chair Disciplinary Committee and is an associate lecturer of the Law of Trust, the Law of Arbitration, and the Law of Evidence at the University of Sierra Leone. In addition, he currently serves as Member of the General Legal Council of Sierra Leone, the body responsible to regulate legal practice.

Mohamed-Lamin Tarawalley will speak at the World Justice Forum's Opening Plenary: The Global State of Justice and the Rule of Law