Director Tan Jing also looked over the case files but did so casually.
Not to mention these were cases he had handled before, speaking of cracking them, it wasn't that straightforward. If the cases could be solved with a wave of his hand, he wouldn't have left them here in the first place.
As for why these cases remained unsolved, the difficulty was partly to blame, as was the lack of resources. But both these issues were essentially unsolvable. At least up to now, there had been no fundamental change in either respect for Director Tan and his Zoumadao Police Station.
Therefore, Director Tan's attention was more on Jiang Yuan.
It was like a poor student watching a top student do their homework. There was no point in trying it themselves; it was better to wait until the top student finished and then copy directly.