
Is this present or past tense?

untersuchten, handelte = Präteritum (alias Vergangenheit)
gefunden worden waren = Plusquamperfekt (alias Vorvergangenheit oder vollendete Vergangenheit)

OK, I'm asking because the original sentence is in the present tense (as well as Spanish, Portuguese and English), but the French one is in the past tense.

Before I begin to search; could you tell me which one is the original sentence?
Antaŭ ol mi komencas serĉi; ĉu vi povas diri al mi, kiu estas la originala frazo?

It's the Spanish one.
http://tatoeba.org/eng/sentences/show/1277733
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License: CC BY 2.0 FRJornals
This sentence was initially added as a translation of sentence #1277733
added by al_ex_an_der, July 18, 2012
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edited by al_ex_an_der, July 18, 2012