CK,
The current law as written is very unclear. You would think legal folks can do better. Or, perhaps, they want it to be purposely vague. Anyway, the relevant piece was bout not being able to extract a "locking blade" in a "locked position." That can certainly be read as a folder -- a blade that can be locked or unlocked. But the intent, as I read it, is to prohibit a blade that can be be extracted in a "fixed" position. Matter of interpretation which I off course would have the my lawyer argue.
Simply, I want to avoid that situation in the first place. I have four cousins and several friends on the Boston police force. They uniformly interpret a fixed blade as being "illegal." This means I would get likely get hauled in by a Boston cop if caught with one on my person for whatever reason...
sing
AKTI #A000356