Today on the grounds of the Capital in Washington, D.C. a memorial service is taking place to honor those law enforcement officers that died in the Line of Duty in 2016 and also to remember those that died in years past.
Below is the content of a Presidential Proclamation signed by John F. Kennedy on May 4, 1963. As you go about your day please take a moment to remember those that died and their families that continue to carry on. To those on duty, thank you for your service.
By the President of the United States of America
A Proclamation
Whereas, from the beginning of this Nation, law enforcement officers have played an important role in safeguarding the rights and freedoms which are guaranteed by the Constitution and in protecting the lives and property of our citizens; and Whereas, through constant application of new procedures and techniques, such officers are becoming more efficient in their enforcement of our laws; and Whereas it is important that our people know and understand the problems, duties, and responsibilities of their police departments and the necessity for cooperating with them in maintaining law and order; and Whereas it is fitting and proper that we express our gratitude for the dedicated service and courageous deeds of law enforcement officers and for the contributions they have made to the security and well-being of all our people; and Whereas, by a joint resolution approved October 1, 1962 (76 Stat. 676), the Congress has requested the President to designate May 15 of each year as Peace Officers Memorial Day and the calendar week during which such May 15 occurs as Police Week: Now, Therefore, I, John F. Kennedy, President of the United States of America, do hereby designate May 15, 1963, and May 15 of each succeeding year, as Peace Officers Memorial Day, in honor of those peace officers who, through their courageous deeds, have lost their lives or have become disabled in the performance of duty. I also designate the week of May 12 through May 18, 1963, and the calendar week during which May 15 occurs of each succeeding year, as Police Week, in recognition of the service given by the men and women who, night and day, protect us through enforcement of our laws. I invite State and local governments, patriotic, civic, and educational organizations, and the people of the United States generally, to observe Peace Officers Memorial Day and Police Week in this year and each succeeding year with appropriate ceremonies in which all our people may join in commemorating law enforcement officers, past and present, who by their faithful and loyal devotion to their responsibilities have rendered a dedicated service to their communities, and, in so doing, have established for themselves an enviable and enduring reputation for preserving the rights and security of all citizens. In Witness Whereof, I have hereunto set my hand and caused the Seal of the United States of America to be affixed. DONE at the City of Washington this fourth day of May in the year of our Lord nineteen hundred and sixty-three, and of the Independence of the United States of America the one hundred and eighty-seventh. 
JOHN F. KENNEDY By the President:
GEORGE W. BALL,
Acting Secretary of State