Cincinnati Bengals wide receiver Jerome Simpson is now apart of a massive drug investigation — after police confiscated a mind-blowing 8.5 POUNDS of marijuana from his Kentucky home.

According to reports, cops searched Simpson's home after snagging a package that was shipped to his house — containing 2.5 pounds of Mary Jane — and then found another 6 pounds of weed, packaging materials, scales, and smoking devices.

A rep for the National Marijuana Initiative — which coordinates marijuana enforcement operations around the country — believes the house was set up as a "potential distribution network."

Bengals tackle Anthony Collins was also present when police raided the home — and he's being investigated as well. Police detained the two players during the search, but neither was arrested.