EMDR doesn't specifically look for repressed memories. It works with your conscious memories. However, I think, it's possible that some repressed memories may come to a surface during EMDR session. And, when they come to your awareness they become conscious and then EMDR can work with those too. I am not entirely sure about it though because I am not personally familiar with EMDR. My information comes from those who have had a personal experience with EMDR either as clients or practitioners or both. None of them mentioned repressed memories to me though, so I am purely speculating..