Doug, the article on DNAInfo says the following:

"Through the investigation, authorities went to 41 retailers in the borough that sold knives. They were able to purchase 43 illegal knives from 14 stores, including 31 gravity knives and 12 switchblades, the DA said. Those types of knives are outlawed because the blades snap into place."

Read more: http://dnainfo.com/20100617/manhattan/ho...s#ixzz0rFs3jd4L

As far as I can tell this was the only account that differentiated between gravity knives and switchblades - other media accounts simply said 43 illegal knives were purchased. Apparently authorities were able to purchase 12 switchblade knives.

I think I know your feeling on gravity knives. Would you agree that the sale of switchblades is illegal? Or do you disagree with the authorities definition of some knives purchased (12) as switchblades (ex. is their definition inconsistent with the Federal Switchblade Act)? Does Knife Rights support or oppose laws against switchblades?