Bruce Riggs writes:

How would this come up in court? If I had an accident at night, with a
passenger, and my insurance company disputed my night currency, how
could they dispute my log entries which demonstrated my currency?

GPS logs (in my case, at least, and I suspect in others), rental records,
radio tapes, ...

But would they? I asked a long time ago about people logging night
take-offs and only got one person who claimed to do it and a bunch of
"well, it'll probably never be an issue" kind of responses.

--kyler