There's a heavy police presence at at Rothamsted Research in Harpenden after protestors planning action over a genetically modified wheat trial there were banned from going anywhere near the crop.St Albans council has secured extra police powers to stop them going on to the land.
The media have been given a guided tour of the land where genetically modified wheat trials are being carried out. A group called Take the Flour Back are due to protest over the open air trials of genetically modified wheat.
Scientists say they're still concerned protesters will try to destroy a trial of genetically-modified wheat in Hertfordshire.
The activist group, Take The Flour Back, will not be allowed near fields planted with genetically modified wheat" at Harpenden