St. Jerome Publishing, who produce a wonderful series of books on translation practice, among other things, also publish a periodical called The Translator. I’ve never seen it but the tables of contents online certainly look very intellectual.
They are now looking for contributions to a special edition on Law in Translation, to be published in 2014. The editor is Dr Simone Glanert, who is a law lecturer at Kent University (UK). For the call for papers, see Juris Diversitas.