I believe that being in the field is probable cause.. They can search boats and cars (I think). I am sure you have nothing to hide anyway. if you did you'd have been offended by people on this site a long time ago and wouldn't be posting here shocked )
Just my feeling I'd like to see our game enforcment guys get more power especially as related to give more weight to their testimony about intent in snagging cases. When a warden tells a judge that a guy was attempting to snag the judge should be able to use that as strong evidence. not just his opinion.