He was deputy judicial secretary until his appointment as Director of Research of the Law Reform Commission in 1973.

[6] A year later, he obtained a year-long Ford Foundation grant as a visiting scholar at Harvard Law School and the Environmental Institute in Washington.

[7] In March 1992, Boateng was appointed Chairman of the Electoral Commission of Ghana with Kwadwo Afari-Gyan as his deputy.

[6] In 1999, he was nominated to join the Supreme Court bench together with Justice John Debra Sapong.

[13][15] In his spare time, he likes to listen to classical music, work on his poultry farm and write on legal subjects.

[13] He is the brother of Ernest Amano Boateng, the first Vice Chancellor of the University of Cape Coast.