Justice Mugambi ruled PSC did not offer a plausible explanation as to why it had excluded nominated members.
Senators Sifuna and Wambua said the amount would help the striking officers sustain their efforts as they demand implementation of their CBA.
The senators demanded the arrest and prosecution of individuals behind the saga and urged the government to protect farmers against unscrupulous dealers.
Agriculture CS Linturi came under fire after the Senate Agriculture Committee accused him of trying to direct them in the way they should do their work in the probe on the fake fertiliser scandal.
The total number of cases challenging Ruto's pet project is now seven.
Senator proposes all payments below a billion be cleared before year end as numerous service providers in counties grapple with court cases filed against them by their financiers and suppliers.
Subscribe to our newsletter and stay updated on the latest developments and special offers!
Join