Our teacher of english told us that in juridical texts the use of future tenses is the following:
For example the sentence: "We will do our best to investigate this accident and punish guilty people.
will/shall means that we'll do our best if there are no results then it'll be our fault
if to be going to is used then it means: we'll do our best if there are no results then it wouldn't be our fault.
Is this correct?
To me 'will' expresses more of a promise than going to, but the promise is to try, not to succeed. It does carry extra seriousness, but I don't think it's directly the case that they can be blamed for any failure.