GREEN BAY, Wis. -- Green Bay Packers cornerback Sam Shields was charged with possession of marijuana and possession of drug paraphernalia -- both misdemeanors -- nearly three months after a police investigation, according to Wisconsin Circuit Court records.

Charges were filed Thursday for an incident that occurred on Oct. 19, according to the court records.

According to the police report, first obtained by WBAY-TV, the Brown County Drug Task Force sent investigators to Shields' Green Bay-area home "on suspicions of drug-related activity ... based on parcel sent through the U.S. Mail."

The criminal complaint says Shields opened the door to his residence holding "a blunt" while investigators, who were given permission to search the home by Shields, said they also found "several jars of green plant material that was consistent in appearance with marijuana."

Sam Shields, who has not played since the Packers' regular-season opener, was charged with possession of marijuana and possession of drug paraphernalia in Wisconsin on Thursday. David Rosenblum/Icon Sportswire

According to WBAY, Shields attorneys appeared in court on his behalf Friday and entered a plea of not guilty.

"The Packers are aware of the matter involving Sam Shields," the team said in a statement to ESPN. "We will refrain from making any further comment as it is an ongoing legal matter."

Packers coach Mike McCarthy said he was made aware of the incident at the time.

Shields has not played since the regular-season opener, when he sustained a concussion. He was placed on injured reserve on Oct. 18.

Earlier this week, marijuana charges were revealed against wide receiver Geronimo Allison stemming from an incident in September.

Also, Packers safeties coach Darren Perry was charged with operating a vehicle while intoxicated (his first offense) on Dec. 17 by the Brown County Sheriff's Office. He refused a breathalyzer test and he was also cited for an unsafe lane violation, according to court records.

"The Packers are aware of the matter involving Darren Perry and have been in communication with the NFL," the team said in a statement to ESPN. "As a pending legal matter, we will refrain from making further comment."