OK someone mine telling me what the difference between these two terms are? Are they the same thing or is one a specific type/style?

Ed

Auto would the category. Switchblade would be a type. hankd

The terms are interchangeable.

"Switchblade" generally has a negative connotation to the "sheeple", but it means the same as a "automatic" knife. For the purposes of law they are one and the same.