According to Tobiko, the Inspector General of Police should hasten saying those allegations are serious crimes under the International Crimes Act 2008.
“In the circumstances and pursuant to the provisions of Article 157 of the Constitution, I do hereby direct that you cause a thorough and speedy investigation into the grave matter,” he wrote.
Fabrication of evidence and obstruction of justice, Tobiko said, are serious crimes against the administration of justice.
While speaking in Mt Elgon last Sunday, Kuria alleged that together with the three they were involved in procuring false witnesses to fix Deputy President William Ruto in the case he is facing at the ICC.
READ: Moses Kuria confesses how he procured ICC witnesses
The three have since denied the allegations that they schemed to fix Ruto and threatened to sue him.
However, Kuria said he was unshaken and will stick to the truth of what happened when ICC started investigating Kenya following the 2008 Post Election Violence.
He told them he was not even afraid to face them in court.
On Tuesday, he tabled before the media a letter in which he said Nyong’o on behalf of Odinga and the Orange Democratic Movement wrote to the UN Security Council to ensure Ruto’s case would remain at the ICC.
Kuria also stuck to his earlier allegations and maintained that Karua while acting on behalf of the Party of National Unity, brought to him witnesses to testify before the Kriegler led commission.
READ: Kuria tells Odinga, Nyong’o, Karua to bring it on over ICC