Amazing that you could get such fast action out of the FBI for a $1400 cheque! 
Just FYI because I didnt know this before my "incident". The Secret Service is who you call for Fraud. Cops cant and usually dont do a whole lot. When you have bad checks, and crimes with money, try the Secret Service first.
The big thing was, I handed over so much info to Secret Service, that they had to nab him. I did all the work. I laid everything out for them. He said it was one of the easierst cases he'd ever touched.

Plus the lady at the Credit Union called the SS over anyway because mutiple bunk Cashiers checks were being written from the University of Utah Credit Union under the same numbers as my check.
Plus then they had the case from the REAL Peter Waldo who was an attorney. Turns out this ripoff artist Griffen Lamar (guy who ripped me off) worked as an intern for Peter Waldo. Then he stole a stack of checks from Peter, and started making puchases at stores as Peter Waldo and internet transactions as Peter Waldo. He dealt with me as Peter Waldo from a "Peter Waldo" hotmail account.
I also tried to get some of his buddies busted too, but not enough evidence for the SS to go on. He was having all of the merchandise shipped to a buddys house a few blocks away.
I even got my bike back! The idiot registered it with the University as his. Griffin worked at the University in the library!
And I got this guy in New York's bike back. Griffin sent him a $3000, and the guy sent him a cherry new bike. Griffin still had that bike when busted. Secret Service busted in his mom's house to. Came right up on his SISTER sleeping on the couch and woke her up with a gun in her face!! He freaked out and started screaming bloody murder. She thought they were getting robbed! lol
They busted him with the stack of stolen business checks, all the blank Cashiers Checks they had printed up. They found weed, bongs, pipes, and loads of stolen hear. They said both his and his moms house were disgusting. Dog crap on the floor in the living room, trashed kitchen, food all over the place! Just nasty.
Also, if you want to be really safe.... according to the SS, only accept United States Postal Money Orders. If they somehow spoof them, then they have the postmaster and additional government on their tail. Plus they are REALLY hard to dupe. You could also REQUIRE that they send the reciept from the post office trasaction of buying the MO's