Ms Jumwa reportedly could not be found from Thursday to Sunday, when she emerged from her Nyali home and went to a police station to record a statement.
She recorded the statement and left, unlike her co-accused who were detained after appearing in court.
Those arrested earlier include Wachu Omar Abdalla, manager of the National Government Constituency Development Fund, NG-CDF officers Sophia Said, Bernard Riba, Margaret Faith Kalume and Robert Katana, and government engineer Kennedy Otieno Onyango.
Immediately after Director of Public Prosecution (DPP) Noordin Haji ordered the arrest of Malindi MP Aisha Jumwa and several others in a Sh57 million graft case, detectives started searching for them.
Ms Jumwa reportedly could not be found from Thursday to Sunday, when she emerged from her Nyali home and went to a police station to record a statement.