I just want to comment on the voucher issue... In the past I've noticed, someone posting some unique herp, and then someone pops up and says, "I've been catching those for years" or "I found four of those, but I never bothered to take pictures" or "I had the pic of a three-tailed Jack-a-lope, but I lost the pic.."
If you are into herping... and you know enough, to know you found something special, take a voucher shot! Then you have proof. When I posted the white-bellied ringneck and the blue/grey olive sierra garters... I got comments saying, "I found a few of those but never took a pic." The same people, photographing the hell out of the common species... TAKE A PIC!
On the other hand... I'm no stranger to the, "wishing I had proof" sinario. When I was a kid, I found my first Yellow-bellied Racer, basking/hunting, half sub-merged in water, on top of those water weeds where gigas are normally found. It was more than five feet from the bank, with water inbetween the snake and the bank. (I'm guessing he was hunting for frogs) I was in the water, waste deep, and netted the first "green watersnake" I had ever seen. The only witness to that is my friend Mike and my father who watched me make the catch. (I kept the snake as a pet) However, Yellow-bellied Racer displaying aquatic watersnake behavior... sounds a little far fetched for the species. Video or pic would have been a greater observation.
In the case of the boas... they all look alike and a voucher doesn't really proove where in was found. In a situation where you have to, "take someones word for it..." The more logical thing to do, is deny the hear-say stuff. Thats like putting Bigfoot on a range map... sure, tons of people have seen him. But all that deserves is a crappy T.V. show