I am writing my thesis, and I am having trouble deciding on the tense to use when joining two paragraphs. For context:
...but after years of verbal attacks on journalists and new laws to regulate the press, Ecuador’s restrictions on freedom of expression soon became the subject of international criticism and, in the months running up to Julian Assange’s request for asylum, this situation reached new highs when Rafael Correa resorted to prosecuting his critics under Ecuador’s criminal defamation laws.
Of particular interest was a case initiated on 21 March 2011, when Rafael Correa filed a criminal libel suit against journalist Emilio Palacio and Carlos, César and Nicolás Pérez, three directors of the newspaper El Universo...
I don't know if I should use "Of particular interest was..." or "Of particular interest is..."
I think "was" is appropriate because I am discussing what the subject of international criticism was (i.e. what was of interest to the international community back then), but I think my thesis supervisor will see it in the context of my current study. That makes me think maybe it should be "is", as in "of particular interest to THIS study".
Maybe I'm over-analysing it, but my supervisor is stickler for grammar.