A friend had a discussion with an Illinois conservation officer about cast nets on the Mississippi River. The Illinois regulation has an 8' diameter (4' radius), 3/8" mesh listed as the maximum size for a cast net. The IL/MO regs state that the "fishermen must conform with the more restrictive regulations" of either state. Long story short, the officer said you can receive a ticket for "possessing" a cast net larger than 8' diameter, 3/8" mesh in Illinois (including the creeks to the Mississippi), or even on the Mississippi. Has anyone else run into any issues with this?