HS BRANDS INTERNATIONAL (MYSTERY SHOPPERS) SENT ME A FRADULENT CHECK (WHICH I DID NOT CASH) LORRETO KY

I RECEIVED A $1,870.00 CHECK, TO GO AND SHOP FOR THEM AND REPORT BACK TO THEM WHAT I FOUND.  I DID RESEARCH ON THE CHECK  LOOKING UP THE ROUTING NUMBER OF THE BANK.  COULD NOT FIND THE BANK, SO I CALLED US BANK NATIONAL 1800 NUMBER, AND THEY HOOKED ME UP WITH THEIR FRAUD DDPARTMENT.  THE PERSON I TALKED TO SAID HE COULD NOT DISCLOSED DETAILED INFORMATION ON CHECKS, BUT HE DID ASK ME FOR GTHE CHECK NUMBER AND 

THE ROUTING NUMBER, AND LOCATION OF THE BANK ON THE CHECK.  HE SAID HE DID NOT HAVE A RECORD ON THAT CHECK IN HIS SYSTEM.  I THEM MENTIONED TO HIM, THAT I REALIZED THAT HE HAD A RECORD ON EACH AND EVERY LEGITIMATE CASHIER CHECK ISSUED BY US BANK NATIONWIDE, AND HE VERIFIED THAT HE DID.  THAT IN OF ITSDELF HELPED ME TO REALIZE THAT I HAD IN MY POSSESSION A FRADULENT CHECK.  

I ASKED HIM IF ISSUING A FRADULENT CHECK WAS AGAINST THE LAW, AND HE MENTIONED THAT IT WAS NOT NECESSARILY, BUT TO BE CAREFUL WITH IT, BECAUSE IF I CASHED IT, I WOULD BE RESPONSIBLE FOR ALL CHARGES.  Sorry about the all caps, I read not to use all caps after I had written all of this.