The in rem prosecution is on even when the offender is not known. The criminal complaint against an unknown person should not be not archived.
Instruction clerks should carry out searches and seizures. Without them, the confirmation of a crime commission is not possible.
In doubt about the identity of the offender of a crime against wildlife, the complainants may propose the suspected person as an investigation witness.
The loss of biodiversity is a crime against the society. Crimes against wildlife should be considered as a distinguished criminal offense.