Typically papers are reviewed by anonymous peers (other researchers in the field) and the journal's editors. This is why the fraud review board chastised the field of Psychology as a whole.

Note that it would have been nearly impossible to detect fraud in a single, isolated paper His data were fabricated in such a way as to seem believable, and it's not like researchers are expected to record video evidence of their experiments actually taking place or anything like that; they just report the results. He was ultimately revealed by those who were familiar with his work noticing patterns that appeared over many papers. I don't think there is any formal mechanism in place to review entire bodies of work as a whole.