Former Prince George’s County deputy accused of providing explosives to Annapolis man

ANNAPOLIS, Md. (7News) — A former Prince George’s County sheriff’s lieutenant who once led the agency’s K-9 unit has been charged with providing explosives and technical guidance to a man accused of manufacturing dozens of explosive devices, according to court documents.

Micah Sam, a longtime sheriff’s deputy who received specialized explosives training during his law enforcement career, is accused of helping Lee Ralston build explosive devices that authorities discovered last spring at Ralston’s Annapolis home.

SEE ALSO | Ex-Prince George’s County firefighter gets 10 years in child porn case

Charging documents allege that in the spring of 2025, Sam met with Ralston on two occasions aboard Sam’s boat at a marina south of Annapolis and supplied him with explosive materials. Prosecutors allege Sam knew Ralston intended to use the materials to illegally manufacture explosive devices.

Authorities further allege that Sam advised Ralston on how to safely handle the materials and how to increase the devices’ impact. Investigators recovered 32 bombs from Ralston’s home, according to the charging documents.

The court records do not specify where Sam obtained the explosives. However, sources familiar with the investigation said Sam would have had access to such materials through the Prince George’s County Sheriff’s Office.

In a statement, Prince George’s County Sheriff John Carr said Sam was no longer performing regular duties when the alleged offenses occurred. Carr said Sam had been assigned to administrative duty while under investigation for alleged wage theft and was later forced to resign in the fall of 2025.

A source within Prince George’s County government said the sheriff’s office has not identified any missing explosives.

Sam was arrested Wednesday and ordered held without bond during a court hearing Thursday.