By Lisa Iesse Writer TORONTO- Who gets to intervene in Six Nations multi-billion-dollar land rights case is now in the hands of Justice Jasmine T. Akbaral after the Mississaugas of the Credit First Nation (MCFN) challenged whether Six Nations Haldimand Deed is an actual treaty. MCFN lawyer Nuri G. Frame told the court Friday (May 12th) the case has important implications to MCFN. “It is essential and foundational to my client’s worldview, to their cosmology, to their understanding of their place in the world. To their understanding of their future generations’ place in their world. Southern and southwest Ontario is their traditional territory.” Frame told the court MCFN were the sole possessors of the land, which was why the Crown entered into so many treaties with them for lands in…