Investigators say the officer sold the judges cocaine before the justices went to a cabin where one of them died from the drug.
James Fogarty is scheduled to appear before a judge at the federal courthouse in East St. Louis at 1:30 p.m. It is an initial appearance so it could be relatively brief.
Fogarty is facing charges of distribution and possession with intent to distribute cocaine.
Court documents say Fogarty sold an 'eight ball' of cocaine to St. Clair County judges Michael Cook and Joe Christ the day before cook and Christ went to Cook`s hunting lodge in Pike County, Illinois in March.
The documents say Fogarty bought the cocaine for $275 and sold it to the judges for $280.
The documents also say Fogarty did a line of the cocaine with them that day and had used cocaine with them in the past.
Christ was found dead in Cook`s lodge on March 10th from cocaine intoxication.
Authorities say Cook found Christ and was the only other person at the cabin.
Cook was arrested last week outside a Belleville home and is charged with possession heroin and being an unlawful user of a controlled substance in possession of firearms.
After pleading not guilty on Friday, cook was released on a $10,000 bond.
We understand that as part of his release, he may to attend drug treatment while awaiting his trial.
His trial is tentatively set for July 15th.