BENTON — A 38-year-old Centralia man pleaded guilty Monday in federal court to methamphetamine related charges.

Walter James Henson pleaded guilty Monday to one count of possession of equipment, chemicals, products and materials with the intent to manufacture meth and possession of pseudoephedrine knowing it would used to make meth.

Henson was arrested in March 2014 on outstanding warrants. Court documents say at the time of his arrest, Henson had meth in his pocket and a backpack filled with items used to create a “shake and bake” lab.

Henson faces up to 10 years in prison for having the meth-making materials and up to 20 years for possession of pseudoephedrine.

The investigation that led to Henson’s arrest was conducted by the FBI, and the Marion County Sheriff’s Office, assisted by the Illinois State Police Methamphetamine Response Team. The case is being handled by Assistant United States Attorney Kit Morrissey.