[2] He proved a quick study, and his competence and upbeat approach to his job enabled him to earn a permanent assignment as a detective.
[2] Martinez pursued fellow Detective Adrienne Lesniak, who sought to avoid his romantic interests by falsely claiming to be a lesbian.
[4] They eventually did begin to date, but Lesniak's constant suspicions and criticism caused James to end their relationship.
Gina Colon, a new administrative assistant assigned to the 15th Precinct began a tentative courtship with Martinez.
[7] He eventually convinced her of his sincerity, and they got married shortly before the birth of their son, James Martinez Jr.[7] The character was written out of the show in Season 7;[1] in the series, Martinez left the 15th Precinct after passing the examination for promotion and receiving a new assignment as a uniformed sergeant.