Inquiry after retirement/ up government

I retired from the post of Director Medical Health Uttar Pradesh in 2007. After 9 years of retiring, the the Economic Offences Wing of CID Department has opened an inquiry into certain alleged irregularity in purchase of medicines while I was working as Chief medical officer in a district in years 2004-05 and 2005-06. Please advise if the Governement can conduct an inquiry after more than 8-9 years of retirement ?