The Crowded Grave (Bruno, Chief of Police #4) by Martin Walker

Bruno Courreges, chef de police of a small town in France's Perigord, carries a gun but hopes never to use it. But his day has not started well . . .

A French-Spanish summit to be held locally is being threatened by Basque separatists, while animal rights campaigners are causing havoc at foie gras farms.

And it's about to get worse.

Archaeologists digging for evidence of prehistoric man unearth a skeleton. It's a lot more recent than they'd hoped - revealing a Swatch on its wrist and a bullet-hole in its skull.

Despite the influx of summer visitors, Bruno suspects the key to the mystery lies close to home . . .