Is the second "there" a typo in "that there was there insufficient evidence"?

In

that there was there insufficient evidence to justify a trial

There is an adverb in both cases.

The first there is the existential "there" as in "There is a cat in the garden." It is used only as an emphatic confirmation of the existence of a cat. "There is a cat in the garden." = A cat is in the garden.

(Note that "there" is not the subject of "There is a cat in the garden." because we also say "There are cats in the garden." (This is an example of the subject and verb being inverted after a fronting adverb/adjective: it was commoner in earlier English e.g. "Dearly did I love her and deep was my sorrow.")

The second there is the locative "there" = at that place: e.g. "I lived there when I was a child."

that there was there insufficient evidence to justify a trial =

that insufficient evidence to justify a trial was at or in the place or thing indicated.