A Tribunal has been set up and sworn in to investigate Masebo on allegations of corruption and professional misconduct.
In a letter to Masebo, Harrington told Masebo that her resignation would be the morally correct thing to do.
He said that as lead petitioner, he will be calling upon some people to testify but that some of such people will be working under Masebo in the ministry.
Acting Chief Justice Lombe Chibesakunda last year established a Tribunal to investigate Masebo over allegations of breaching the Parliamentary and Ministerial Code of Conduct after the Tourism Minister fired five Zambia Wildlife Authority (ZAWA) directors and dissolved its board.
Masebo in 2013 fired ZAWA director general Edwin Matokwani and other directors that included conservation acting director Melody Zeko, commercial acting director Rose Chivumba, finance acting director Andrew Sampa and head of procurement Taulino Banda.
Justice Chibesakunda said in her letter to Harrington that the purpose of her setting the tribunal against Masebo was to consider the complaints against the Tourism Minister who has been accused of corruption in the awarding of hunting concession tenders.