 In 2005, the court agreed with Ayotte and the others that the Environmental Protection Agency must measure changes in the emissions from power plants and could not exempt power plants from reporting their emissions.As assistant attorney general, Ayotte prosecuted two defendants for the 2001 Dartmouth College murders in Etna, New Hampshire.As attorney general, Ayotte prosecuted the high-profile case surrounding the 2006 murder of Manchester police officer Michael Briggs in the line of duty.