This article details the implementation and use of a "Review Stage" within the CAP (computerised assessment by peers) tool as part of the assessment process for a post-graduate module in e-learning. It reports upon the effect of providing the students with a "second chance" in marking and commenting their peers' essays having been able to view the peer-comments of other markers. Included is discussion on how a mark for performing the peer-marking process can be automatically generated that reflects the quality of the student's marking and commenting of their peers' work. Student feedback is also presented to illustrate the effect that this additional stage of computerised peer-assessment has had upon the student's learning, development and assessment. (Contains 4 tables and 3 figures.)