In looking at four possible allegations of research misconduct, the committee determined that further investigation is warranted for one of those allegations. The recommended investigation will focus on determining if Mann "engaged in, directly or indirectly, any actions that seriously deviated from accepted practices within the academic community for proposing, conducting or reporting research or other scholarly activities."
In the investigatory phase, as in the inquiry phase, the committee will not address the science of global climate change, a matter more appropriately left to the profession. The committee is charged with looking at the ethical behavior of the scientist and determining whether he violated professional standards in the course of his work.
Full report is here: http://www.research.psu.edu/orp