Featured image by Пероша under a CC-BY-NC license. I am currently reading Hannah Arendt's Eichmann in Jerusalem and came across the phrase " in dubio contra reum " on p. 214. My Latin being a little rusty, and it being late in the day, I whacked the term into Google and was disappointed to find that there was no adequate definition of the term in the search results; merely band names and a German entry.