Thank you. I've been listening very carefully.
Mr. Gallivan and Ms. MacLean, thanks for coming prepared and providing us with a lot of good information.
Mr. Gallivan, you mentioned a list of tools you use to go after tax evaders, fraudsters, those who are improperly avoiding tax. You mentioned, I believe, the paid informant program. There's a leads program, the related party initiative that you mentioned. There are criminal investigations and many more tools that you have in your tool kit.
Of all of those tools, which one has delivered the greatest returns for the resources invested?