It’s that way with any “forbidden” substance. Pick up an eagle feather and you might as well be caught with a WMD.
People have had their antique musical instruments destroyed because the feds found out they were made with ivory or some species of exotic wood the EPA decided to outlaw.
I had to buy a new instrument, which had ivory in,ays, when I was traveling. Luckily I knew before hand or Customs would have seized a 150 year old instrument and burned it to protect the elephants,