[Clint N. Suhks]

You’d think the chemicals can be traced like nuclear residue can.

[Carriage Hill]

I’d think that they’d have a “signature”, too, like nukes. Maybe CW liquids don’t? Beyond my paygrade.

I know that herbicides and pesticides do leave “signatures” from the mfgr, ie Dow, Monsanto, Allied etc, but since there’s no explosion involved, tracing herbs/pests is relatively easy.