All issues of Pax Centurion, the official newsletter of the Boston Police Patrolmen's Association (BPPA)
Pax Centurion is the official newsletter of the largest Boston Police union, the Boston Police Patrolmen's Association (BPPA). Newer issues are available directly from the BPPA. The newsletter has come under scrutiny in the past, see Boston Phoenix. (2012). Shit Boston Cops Say.
After the above-referenced Boston Phoenix article was published, back issues of Pax Centurion were removed from the BPPA's website. The Boston Phoenix then made those issues available on their website. However, the website of the Phoenix is no longer operational (the Boston Phoenix closed shop in 2013), and the service they used to host the files does not allow for them to be downloaded.
This page offers issues of Pax Centurion going back to 2006, both the removed issues and the newest ones published by the BPPA. Also, if you look up an officer, any issue of Pax Centurion where the officer is mentioned will be listed under the Articles section of the officer's page.