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In fact, acquiring information does not necessarily have to be done through legitimate collection.
After all, this information is not intended for legitimate and legal activities.
Based on this, obtaining the information provided by Blood Wolf becomes quite simple.
With the advancement of photographic technology in smart devices, they only need to send people to the relevant areas, approach these vagrants, and they can get the vagrants' photos, gender, and information about the areas where they are active.
Of course, the information obtained this way might be somewhat disordered, and with covert photography, it's not guaranteed to capture a full frontal face.
From the elderly man's response to He Ao earlier, it's clear these vagrants are quite vigilant; the abrupt approach of a stranger lingering around each person could very well trigger the group's suspicion.
Plus, this method does not collect the vagrants' names.
