"The cases involving the Toyotas were all done by Li Jiaoliang. He likes to steal oil by the national highways, which is quite distinctive. It's not easily captured by cameras, but the tire tracks are very conspicuous. Moreover, Li Jiaoliang has a habit of involving multiple people in oil theft, which often leads to conflicts. It's a bad habit."
Jiang Yuan, who had looked at many cases, couldn't help but comment as he spoke.
From the cases he had seen in the past few days, Jiang Yuan felt that if he were to plan them, he could probably do a much better job.
Of course, this wasn't a matter of modesty, since most thieves committed rather sloppy crimes. People who lived by crime often had lower education and capabilities, and most turned to crime only when they had no other solutions, choosing modes of crime that were high risk for low reward.
So, crime could indeed be about cost-effectiveness, but most criminals don't even consider this factor.