Portland Fire & Rescue Chief John Klum, whose bureau is currently investigating alleged improprieties on promotional exams, announced his retirement yesterday. The announcement was expected within the bureau and is unrelated to the investigation, says bureau spokesman Paul Corah. 

Here is the chief's email:

From: Klum, John Sent: Wednesday, January 04, 2012 4:47 PM To: All Email Users (PF&R) Subject: My Retirement Friends, I wanted to let all of you know that I have submitted a letter to Commissioner Leonard stating my plans to retire this coming June. I wanted to take this opportunity to thank you all for you r commitment and support that not only has helped me be a better Chief the past four years, but for many of you over my entire career. I will have spent thirty-four years in a Bureau and City that I love and I am very proud to have served with you all. You are the best of the best. I look forward to the internal selection of my replacement and to be able to have a few months with them for a smooth transition. John Klum