Many elaborate rituals were used to identify a vampire. One method of finding a vampire's grave involved leading a virgin boy through a graveyard or church grounds on a virgin stallion—the horse would supposedly baulk at the grave in question. Generally a black horse was required, though in Albania it should be white. Holes appearing in the earth over a grave were taken as a sign of vampirism.
Corpses thought to be vampires were generally described as having a healthier appearance than expected, plump and showing little or no signs of decomposition. In some cases, when suspected graves were opened, villagers even described the corpse as having fresh blood from a victim all over its face. Evidence that a vampire was active in a given locality included death of cattle, sheep, relatives or neighbours. Folkloric vampires could also make their presence felt by engaging in minor poltergeist-like activity, such as hurling stones on roofs or moving household objects, and pressing on people in their sleep.
( In image are more ways you identify vampires)