It is notable for acting as a crossover story, albeit a slight one, to Blake's 7, which Boucher script-edited, as the Psychostrategist Carnell (who appeared in the series two episode "Weapon" in 1979) plays a prominent role.
This narrative is significant as a crossover with Blake's 7, despite being minor, featuring the Psychostrategist Carnell from the series' second episode "Weapon" in 1979.