Definitions by Chief Scrapahoe

JEO 

Short for "Just East Of" -- used mainly by transportation / highway workers.

"RP IS AN OFF-DUTY EMT & REQ 1142 RE OT VEH IN RHS OF WB I-10, JEO CITRUS AVE OFR.
CHP ENRT."

or,

"Driver was last seen eastbound on the I-90 JEO Exit 11 in Bellevue."

JEO by Chief Scrapahoe August 9, 2009

RP 

Reporting Party -- often used by police departments.

"RP is traveling WB on Cedar, JEO 4th Ave S."

RP by Chief Scrapahoe August 9, 2009