A letter petition has been moved before the Allahabad High Court seeking a probe by the Central Bureau of Investigation (CBI) or a Special Investigation Team (SIT) into the Lakhimpur Kheri incident in Uttar Pradesh eight people including four farmers died after they were mowed down by a four-wheeler driven by the son of Union Minister Ajay Mishra (Swadesh & Prayag Legal Aid Clinic and ors. v. State of UP)