That is when Mexican scuba divers, using bright lights and spear guns, slip into the Sea of Cortez and go to work. Soon, the sea runs red with blood. Even endangered sea turtles are slaughtered. Such activity is a federal crime. But that doesn't seem to stop anyone.
Many fishermen can afford to use only primitive techniques like dropping a hand line overboard.
Across the region, law enforcement is scarce. Even when federal fishing inspectors do show up, they often do nothing. Sometimes, they take money from the poachers, and let the killing continue. Travel the region and you will hear such stories again and again. The laws are not enforced by anybody.