From the website of Mr. Bernard Levine (
http://pweb.netcom.com/~brlevine/ma.txt)
"Whoever, except as provided by law, carries on his
person, or carries on his person or under his control
in a vehicle, any stiletto, dagger or a device or case
which enables a knife with a locking blade to be drawn
at a locked position, any ballistic knife, or any knife
with a detachable blade capable of being propelled by any
mechanism, dirk knife, any knife having a double-edged blade,
or a switch knife, or any knife having an automatic spring
release device by which the blade is released from the
handle, having a blade of over one and one-half inches..."
Is that 1.5" thing at the end ALL knives, or just ones that use an "automatic spring release device by which the blade is released from the
handle"?
The only thing I know for a fact is that in Boston blades of more than 2.5" cannot be carried; neither can autos or balisongs.