You are a bit frugal with your images. Post more, including shots of the entire plant, and then successively closer images of detailed plant parts.
I think you have a Blackberry species there, rather than a Raspberry (or Black Raspberry). Black Raspberry typically has glaucous stems (a whitish/grayish cast to their surface) compared to the Blackberry clan.
The characteristics of the thorns on the stems are also good separators of species. I have both the native Blackberry and Black Raspberry here at the Valley, and I'd much rather tangle with Black Raspberry. More more reserved in thorniness, Black Raspberry also is very flexibly pendant in its behavior, allowing its long stems to droop and touch the ground, rooting each time. Blackberry is stiffer and rip-your-head-off thorny - once it has hold of you, it is difficult to extract yourself without wounding and spending several days removing embedded thorn tips.
All that said: these species are valuable wildlife forage, and good for humans who are careful. They can spread rampantly of their own accord, with plenty of assists from birds/animals who eat and deposit seeds.