We know our students *shouldn't* interview during class because stories turn out better if they don't, but we also know they *do* interview during class.
My students started this last year in yearbook, and the newspaper staff picked it up this year. We created hall passes of sorts and added common times for the student body to come to the publications room to be interviewed.
Of course, they can go elsewhere once they meet up instead of staying in the loud room. It's been very helpful for tracking down people at their teacher's convenience instead of expecting them to be available at our beckon call — you mean, they DO stuff in other classes?!