The Last Policeman, by Ben H. Winters

Hank Palace may not actually be the last policeman, but there aren't too many left.  In Ben H. Winters's The Last Policeman, the world is about to end.  A meteor is on a collision course with earth, and people are counting down the days until impact.  Palace gets a quick promotion to detective and becomes a dogged investigator.

During this time of impending doom, suicides have become commonplace.  But when he's called to the scene of an apparent suicide in the bathroom of a fast food restaurant, he gets the sense that it's not a suicide.  As he digs into it, he uncovers a sordid, end-of-days way of life that desperate, hopeless people resort to.

The Last Policeman is sort of interesting, as Winters writes against this background of a society that is losing any hope of surviving more than a few months.  What is left of organized institutions is crumbling, so it's remarkable that Palace tries to maintain a sense of normalcy and justice.  This is not a bad book, but I didn't find myself caring much about the characters or the story.  I may check out books 2 and 3 of the trilogy, just out of curiosity.