At the time this episode first aired, Maine had two Representatives in the House.
The character Ray Dixon has dealings with a cannery. The actor who plays Ray is also In Dark Shadows (1966). Here he also owns a cannery.
Mark Shera and Linda Kelsey had previously worked together in Voice in the Night (1976), Shera being a ''Barnaby Jones'' regular and Kelsey being a guest star. ''Capitol Offense'' afforded both Shera and Kelsey their ''Murder, She Wrote'' debut: Shera would return in Death Stalks the Big Top: Part 1 (1986) and Death Stalks the Big Top: Part 2 (1986), followed by Murder Through the Looking Glass (1988), while Kelsey would return in Jessica Behind Bars (1985) and Track of a Soldier (1996).