LAST UPDATED AT 08:31 ON Mon 8 Dec 2008

French gendarmes carry a mannequin during a 1987 reconstruction of the murder of four-year-old Gregory Villemin. Last week, a Dijon court ordered the case to be reopened in the hope that new advances in science can shed light on DNA evidence.
The investigation into the 1984 murder of Gregory Villemin has been reopened