Known as the "Female Sherlock Holmes" in China's maritime and shipping industry, Chen Wei has been working on the front lines of detecting dangerous cargo and preventing ship pollution in the past 17 years. 

By recording the entire process, Chen successfully detected an illegal shipping declaration. The video shows how a little woman who is less than 1.6 meters tall uses her strength to guard the gate to the sea. 

"In my daughter's eyes, I am a mother who is good for nothing."

 This is her story.