A significant legal challenge has been lodged in the Ndola High Court by Mr. Hinyama concerning an alleged fraudulent adoption process. The petition names Warren Mwambazi as the first respondent, the Electoral Commission of Zambia as the second respondent, and the Attorney General as the third respondent. Mr. Hinyama is being represented in this legal matter by Messrs Robson Malipenga.

Central to Mr. Hinyama's allegations is the claim that the adoption of Mr. Mwambazi, who had previously served as an Independent Member of Parliament, was conducted in a fraudulent manner. Mr. Hinyama states that he actively participated in the party primary elections within the Bwana Mkubwa Constituency. During these primaries, he asserts that he emerged as the preferred candidate, initially being ranked number one by the wards, and subsequently ranked second among the preferred candidates for parliamentary adoption in the constituency.

Further details within the petition describe a specific incident on the evening of May 18, 2026. On this date, Mr. Hinyama claims he was advised to proceed to Arcades to collect his adoption certificate. However, he alleges that he was subsequently deceived by the first respondent, Mr. Mwambazi, who purportedly wrote his own name on an adoption certificate that had been signed by Hakainde Hichilema and the UPND Secretary General, Batuke Imenda.