Comment by fulladder

I think we're talking about different scenarios. What I'm considering is a scenario where some type of enforcement authority for illegal fishing is considering whether drones are a good solution. My answer is yes. However, I am aware that no such authority exists at present because the illegal fishing is not actually illegal under any globally recognized laws.

My larger point in the GP is that you don't need to threaten anybody with force to get them to comply with a (hypothetical, future) law or treaty like this. The people doing this fishing are operating businesses, and if you make it costly for them to operate a certain way, they will change how they are operating to become compliant. This occurs all the time in other industries, so I don't see why fishing would be different.