"The Sinister Pig" by Tony Hillerman Harper Collins, 2003
The Washington office of the FBI has snatched a murder case away from the local authorities that would normally handle it, raising questions and arousing the suspicions of the Navajo Tribal Police and the Border Patrol. Hillerman reprises his cast of characters, including Jim Chee, Bernie Manuelito, and the now retired Legendary Joe Leaphorn in another intricate mystery set in the Four Corners area of the American southwest. The author's web site is at http://www.tonyhillerman.com