the biggest knife you can legally carry around is a 4 inch blade, not including the handle. i carry a knife everywhere i go, used to carry it on airplanes before sept 11, it was perfectly legal. i carry it mostly out of habit but its always handy to have one around.

mike kerley is right about cops though, you cant just assume that theyll tell the truth in court or on a report. i got a ticket for cutting through a gas station when really i drove in to see if they did state inspections. i thought they might because they had a garage with a lift, but they didnt so i drove out. in court i asked the cop if the station had a garage in it and he said no, that it was just a food store. should have brought pictures.

__________________
1991 300 D 2.5 Turbo, 220k
also in the family:
1981 240 D 185k
1991 350 SD 185k
2006 S 500
2005 SLK 350