I've never had the least bit of trouble with knives being confiscated. Can't say it's cuz I aint intimidating looking to most cops. I'm about six feet tall, 250 pounds, and still benchpress about 360. my hair is usually pretty wild, I spend alot of time doing manual labor and thusly wearing quite a bit of grease and dirt and driving my a$$ ugly 3/4 ton Chevy work truck. I have a real bad tendency to fit the stereotypical look of a small town brawler/wife beater. I've used my MT autos around cops (working security at the time) and openly carry knives of a less than PC persuasion.
One reason I seem to do awright is that irregardless of how I appear, I'm always soft spoken, polite, and I never carry a knife as a weapon. Even my REKAT Hobbit Warrior is just for knock around construction use. I'm also real good about turning my engine off, keeping my hands in plain site, and talking and moving very slowly when I'm pulled over. if I have a gun in the car (which I most often do) I'm quick to say, "hey, I really don't wanna surprise ya' or anything, but there's a revolver over on the passenger seat. Figured I'd rather tell ya' than have you find it for yourself..." Revolver is AlWAYS just there cuz I'm thinkin' 'bout headin' to the range in a bit... really never had a problem, so...I think the key to keeping knives from confiscation is simple discretion and demeanor, and has very darn little to do with looks once contacted.
Well...on the other hand, in the town I live in it's still not unheard of for someone to pull up to the grocery store on a snowmachine or fourwheeler with a .44 mag on thier hip to pick up some bread, milk, and coffee, so perhaps my being left alone isn't such a great achievement.
Actually, I did have an Anchorage cop by the name of OFFICER FOCKING APPELLO!!!! give me a horrible time over a revolver once.
in the middle of July (years ago) a buddy of mine bought a truck up in the Eagle River Valley just on the outskirts of Anchorage, and he needed a ride to go pick up his truck. So I agreed, and we hopped in my Bronco, went an' picked up his truck. Since my Bronco had a busted fuel gauge and I'd forgotten my fuel calculations I wound up running outta gas on the way home with him a ways ahead of me.
So, I pulled my truck over, hopped out and started to wait for him to notice my lack of presence in his rearview mirror and come back to get me.
So there I am, wearing a T-shirt, cut off jeans, and a pair of low cut hiking boots waiting for my buddy to come back when an APD cruiser comes by, pulls up behind me, and hits the lights. SO here's how the conversation went:
Me: (standing slowly, smiling tentatively and givin' a small wave) "uh..hey there, how you doin'?"
Officer: (jumping back into a modified Weaver shooting stance with his hand hovering over his Glock) "WHAT?? WHAT'D YOU SAY TO ME??!!"
Me: (speaking like he just walked out of his flying saucer and took of his space helmet) "errrr...uhmmm...I said hello...."
Officer (ignoring any attempt at courtesy) "what's going on here??"
Me

feeling very askeered now) "a friend of mine just bought a truck up the road a ways, I was following him home and ran outta gas. Still waiting for him to notice I'm not following him..."
Officer: (assuming all the command presence crap with all of his five foot eight pretty boy height)
"lemme see your drivers license!"
Me: (tentatively) m'kay...it would probably be a good time to let you know it's in a fanny pack, on my front seat. Thing is that I also have a revolver there, and I'd hate to surprise you.."
Officer: "Why do you have a gun in your car??!!"
Me: "My friend and I were planning on going shooting when we got back to the Valley"
Officer: (glaring at me like I just spit on his boyfriend) "reach into your truck real slowly, and get the bag out. No! not from that side! from over here! it's for your safety and mine!"
So's I get the bag out, hand it to him as slowly as possible, cuz this guy was DEFINITELY overdue for a switch to decaf... He opens the bag up and pulls out my loaded S&W 625 .45 ACP Revolver and flips the cylinder open in a perfect imitation of Dick Tracy. (Us bettter educated gun folks knowing that's one of the highest levels of abuse to a revolver outside of perhaps using it as a framing hammer) and then he pulls out my loaded full moon clip from the revolver. it is now empty. But oh no! not good enough for him! he starts bending the sh!t outta my moonclip trying to pry the bullets out one by one, after the revolver has been cleared.
I finally got a bit more assertive after witnessing this atrocity to my favorite gun and told him "hey , look.. the gun is empty, you're bending up my moonclip and the cartridges don't come out that way anyways, would you PLEASE leave it alone?"
so, he grudgingly does so (miracle of miracles) Primarily cause that complex moonclip was proving way too much of a challenge for his level of cognitive reasoning. Then he FLINGS my cylinder shut again. and continues waiting eagerly for my name to come up as the FBI's most wanted or something.
In the meantime, my buddy has turned around and come back for me. He's pretty good about not sending off the wrong signs to cops himself. So, he parks off a ways and starts walking up to us. Just as he was starting to say "hello" the cop screams over to him "DO YOU HAVE ANY WEAPONS!!???"
so my friend (assuming the same "welcome to Earth" tone I had) "errr...no...." and he kept walking towards up, very slowly, hands fully visible. and then..the police officer spotted danger! groping at his Glock with the same steadfast speed as if his crabs were acting up and started screaming to my friend "WHAT'S THAT ON YOUR HIP! FREEZE!! WHAT'S ON YOUR HIP??!!"
So, my friend told him...errr..."it's called a cell phone, officer..."
So..in the meantime he found out I wasn't even wanted for any parking tickets and started to dismiss me (miraculously in an unventilated condition) and told me to drop the back window to my Bronco so he could put the bag all the way in the back "for his safety and mine" well..problem is the switch had gone out for my rear window and I couldn't lower it. I told the officer this and unhindered by any rational forethought he THREW my bag with my gun, ammunition, a folding knife, etc. OVER both my seats into the toolbox, handyman jack, and other miscellaneous metal tools I keep back there.
the sonuvabitch bent my crane and scratched the gun. Also bent my moon clip. I suspect that APD was experiencing some budget cuts at the time and sending thier officers to the city zoo for firearms training.
So, anyhoo, I tried calling to file a complaint half a dozen times, never got a call back, constantly got pushed off, etc. In the meantime I'd told my sad tale to a gunsmith in town here who took pity on me and fixed my gun for free.
that incident excluded though, I've really never had problems with cops and my weapons...errr..tools... and that one wasn't really confiscated, it was abused and broken.
In retrospect I definitely shoulda been more assertive when filing my complaint, but at the time I'd figured it best to just let it slide. In some corner of my mind I was quite honestly afraid of pissing off or going against a cop...
finally in closing, I'd like to say...
If any of the other involved parties should read this...
Appelo, you're an ass.
dispatchers, and anyone else who shoved me off...you suck too.
