Well, if there's a doubt about the source-text (non identified language! ) we should either remove the request and tell requester s/he's got to check her/his source. Of course translation that was done from it would be rejected with no rating; or translator can identify the source-text.
So first we've got to ask both requester and translator to identify the source-language, and if there isn't any answer, we'll remove the request after having rejected the translation that was done from it with no rating.
Thanks a lot Franck and Lene I think it can be accepted without a poll... if it gives nothing. I did a search right now, and got almost the same meaning/result as you Lene (You are cute) But, I'll let it be in the poll for a while.