On his visit to Rothamsted Research in Hertfordshire Mr Paterson visited the field where the active GM crop trial is taking place.
The field, which is surrounded by a high fence, has security guarding it 24 hours a day and signs warn of guard dogs.
Everyone going through the gate next to the field had to sign a book as part of the tight security process - even Mr Paterson.
Before taking the trip out to see the crop trial, Mr Paterson toured the laboratories and had a go at using a particle gun, which is used in the GM process
More top news
The Tour of Britain is coming to the region with Suffolk and Essex hosting two stages of the event.
The chief fire officer of Essex has been sacked after a misconduct investigation.
Hundreds of people attend funeral of Kyle Warren in Harleston 3 weeks after fatal crash