[7] In the 1970s, she and other high-level government officials were allegedly involved in an ivory-smuggling ring which transported tusks out of the country in the state private airliner.
[8][9][10] A May 1975 edition of New Scientist cited her as one of Kenya's "ivory queens" but also asserted they could not be completely certain that these claims were true.
[11] However, New Scientist claimed that there was now documentary proof that at least one member of Kenya's royal family had shipped over six tons of ivory to Red China.
The report stated that the Kenyatta family had offshore investments including a company with assets worth at least $30 million.
During Jomo Kenyatta's exile at Lodwar and Maralal, Ngina stayed with him, as did their daughters, Jane and Wamboi.