Days four and five of the arbitration on our collective agreements have now been completed. On February 19, 2019 we introduced evidence related to letter carrier delivery and over burdening. On February 21, 2019, National Union Representative Nicolas Presne testified on the technical aspects of letter carrier work. Following video evidence of Cari-Anne Gordon, a letter carrier from Saskatoon on her route, she testified about the difficulties of using the back-to-back method, particularly in extreme cold. This is just one of the hazards that letter carriers have to deal with.