By now, you know Marcus Peters is a physical corner. Every single draft report on Peters talked about his physicality in press coverage. Every talking head that mentioned him discussed his physicality in press coverage. This writer spent several thousand words talking about his physicality in press coverage.
So, yeah, Peters likes to get his hands on people and dominate them. Of that we can be certain.
Of course, being bigger and stronger doesn't always result in a clean win when you're playing corner in the NFL (or in the arena against a guy with poisoned spears).