Wang keeps smiling as a way to release the pressure of her heavy workload. Provided to China Daily

Although Wang thought she was good at summarizing and giving the main idea of an article, she found following the case frustrating. Many of the suspects had nicknames and she had to figure out who each of them was among more than 60 names in the files.

"I had to work overtime to make clear all the facts and draw up a picture of all the different relationships between the suspects," she says.

Like other law graduates, Wang originally dreamed of being a judge, handing out verdicts and representing justice.

"I even looked down upon my job and felt upset at the beginning, since I had never heard about it and didn't know what I could do here," she says.

It wasn't until she finished the case and made the decision to arrest the suspects that she realized how interesting and challenging it was deciding whether to open or close the "door" to prosecution.

Now when new cases are allocated to Wang's department, she is always the first one to understand them. "I am curious about the stories behind these incidents," she says.

She once stayed at a party for less than hour and left in a hurry, because she was then working on an international fraud case. "I was confused as I read through the evidence, as it involved so much professional and complicated Internet knowledge," she says.

"It brought me a lot trouble and I can't say how many times I had to ask for help from our newly established online security department."