CP in general is harder to trace since you gotta do the leg work to find out who the victims are, if this was made in a country where you can easily make this shit, check with your superiors this isn't THEIR child exploitation racket...

Meanwhile going after an artist that makes a drawing and that's it is SO much easier as they don't try to hide as much since they stupidly think that authorities would not waste time using them as sacrificial to appease the public than go after demons.