Re: Batman - The 1940s Serials
On the other hand, given the era's general recklessness with regard to radioactivity, you could do something like spraying a car with a radium mist and tracking it via Geiger counter.
Similar to the idea Q floated in On Her Majesty's Secret Service
, about placing radioactive lint on people to track their movements (more James Bond).
“A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP” — Leonard Nimoy (1931-2015)