Former Mungiki leader Maina Njenga on Thursday presented himself to the Directorate of Criminal Investigation headquarters.
He was accompanied by Azimio leaders including Martha Karua, Eugene Wamalwa, Mwangi wa Iria and George Wajackoyah.
Embattled Jubilee secretary general Jeremiah Kioni was also present.
Njenga's supporters were also present chanting the words "Ndovu" to mean elephant.