Lawyers for convicted mass murderer Robert Pickton will return to a British Columbia courtroom at the end of March for what's expected to be a two-week-long appeal of six counts of second-degree murder.

The length of time set aside for the hearing in the B.C Court of Appeal is considered rare in a case that has already shattered many legal precedents.

The March 30th hearing is proceeding after a judge ruled Pickton will not face a second trial on 20 other murder charges until the appeal of his original conviction is decided.

Pickton initially faced 26 first-degree murder counts in the deaths of women from Vancouver's Downtown Eastside, but the trial judge separated the charges into two trials.

The Port Coquitlam farmer was convicted in December 2007 of the second degree murders of Sereena Abotsway, Mona Wilson, Andrea Joesbury, Georgina Papin, Marnie Frey and Brenda Wolfe.