A suspected drug dealer has been charged with placing a bomb in the truck of undercover agents in hopes of intimidating them from testifying against him.The alleged bomber, Robert Lee Garrison, 41, of Beech Grove in neighboring Coffee County is charged with coercion of a witness, initiating the process to manufacture meth and possession of explosive devices. He remains held at Warren County Jail under a $250,000 bond.He is charged after he allegedly placed two pipe bombs, along with meth lab components, in the vehicle of two confidential informants.“He placed a backpack containing numerous components of a meth lab and two pipe bombs in the back of the truck belonging to the confidential informants,” Sheriff’s Investigator Jody Cavanaugh swore in warrants against Garrison.Cavanaugh explained that just two months prior Garrison was indicted on charges of delivery and manufacture of meth.“The confidential informants are material witnesses in that pending case against Mr. Garrison,” Cavanaugh said.However, instead of detonating the bombs in the back of the victims’ truck, Garrison reportedly chose to report them in apparent hope the informants would be blamed for possessing the items.“Mr. Garrison had an individual call the non-emergency number of 911 to report the items in the back of the truck,” Cavanaugh said, noting investigators firmly believe it was Garrison who transported the explosive devices and intentionally placed them in the back of the truck.His home in Beechgrove has been searched by local lawmen and elements of the ATF and Tennessee Bureau of Investigation.His preliminary hearing has been set for Aug. 27 before General Sessions Judge Bill Locke.