Thank you very much, Mr. Chair.
My thanks to the witnesses for taking the time to join us today. We are grateful to them.
Mr. Evans, I will start with you in order to take advantage of your great expertise in the field of biosecurity.
Can you tell us about specific cases of intrusion, where people go on to a farm, for example, to sit next to cattle for a few hours and then leave without doing any damage? What are the impacts of those types of visits and for how long should we be afraid of negative consequences? It's not just about the intrusion, but about the potential contamination.
Do you have any data about that or is it a complete unknown?