Reports from multiple channels, including the Administrative Committee of the West Lake Scenic Area in Hangzhou, confirm the presence of several bionic robot fish in the West Lake area. These innovative aquatic robots are the result of a collaborative effort between the public security division of the West Lake scenic area and the Institute of Automation at the Chinese Academy of Sciences. Tailored for underwater missions, these robotic fish are modeled after the common carp native to West Lake. They measure approximately 60-70 centimeters in length and weigh around 4-5 kilograms, allowing for easy one-handed handling. Each robot fish is equipped with high-resolution underwater cameras in their heads, while their trunks house batteries and control systems. Their tails, crafted from flexible materials, replicate the undulating movements of real fish, enabling them to swim at a speed of 0.3 meters per second. With inertial navigation systems on board, these robots boast a positioning accuracy within 10 centimeters. They excel at identifying objects like cell phones and wallets in murky waters and can pinpoint items buried in shallow mud. Upon receiving requests for help from tourists, police officers can remotely designate search zones and operate retrieval rods to precisely recover items in shallow water, coordinating with boat operations for deeper or more complex areas. Furthermore, these robot fish gather real-time data on water temperature, pH levels, and other vital parameters, monitor water quality for anomalies, and capture images of aquatic flora and fauna to aid in identifying invasive species and conducting population surveys. When nearing waterbird habitats, they automatically reduce their speed to minimize disturbance to wildlife.