[londons_explore]

Isn't things like this the reason that the UN provide election observers?

By spot checking just a random 100 votes are correctly tallied, you can be pretty sure the outcome of the election is legit in a > 10M voter country.

[Someone]

> By spot checking just a random 100 votes are correctly tallied

How do you do that? I think the only error you could detect is when the tally has fewer votes for a party than what’s in that sample. If so, a fraudster could report 100 votes for every party, and add the remaining to whatever party they want to win.

[londons_explore]

You have to design the election system with this in mind.

One such design would be for every vote to have a unique id. When announcing the results, you also publish a list of which vote ids were tallied for which candidate.

Then you have 100 random ids, and the checkers watch those votes all the way from the voter casting them to the final tally.