(Decanter) - There has been a sharp rise in grape thefts during the Burgundy 2016 harvest, say police and winemakers, with reports of extra surveillance being set up around vineyards. 

A Beaune police source confirmed to Decanter.com on 7 October that there have been at least four separate complaints of stolen grapes from the Burgundy 2016 harvest. That’s a new record for the force.

Winemakers have also spoken of problems with thefts across the region and the issue has been widely reported in French media in recent weeks.

Burgundy is already facing a particularly tough vintage after heavy frost and hailstorms earlier in the year have seriously damaged yields.

Burgundy’s wine bureau, the BIVB, suggested that some of the supposed thefts might have been innocent mistakes.

The region’s patchwork of vineyard ownership means that accidentally picking someone else’s grapes is a hazard of harvest.

But, growing numbers of producers suspect a rise in more sinister acts.

One vintner in the Cote d’Or reported the equivalent of half a barrel of wine stolen.

‘This year was already difficult, as we lost half our potential harvest because of the devastating frost in April, so we did not need this,’ said owner Eric Boussey, of the five-hectare eponymous winery in Monthélie. ‘It is revolting.’

Boussey said representatives of domains in Beaune, Puligny-Montrachet and in Meursault have complained to police.