BillF said:"No digging" does not mean no retrieval. If your city ordinances allow detecting in public places but tell you no digging they mean no holes, plugs etc. However, the use of a screwdriver up to 3/8" may be allowed for retrieval. You need to call city hall or visit them. I did and they gave me a copy of the rules. Permits used to be required but, not any longer. There was a very small list of parks that were off limits for reasons only known to them. There are over 90 other parks to hunt, just in the city limits, the same amount outside those limits but, I'm quite sure the same rules apply.
Don't get that discouraged, if you like to hunt in this park make the effort to use a screwdriver. If the city allows their use, your parks workers won't be able to boot you.
Good hunting.
Bill, this has been an oft-cited way to supposedly circumvent such verbage that might refer to "dig" type of wording. Someone goes out with a screwdriver to prod around in the grass (theoretically doing it in such a way as to not remove any dirt, etc...). The are able to hit the coin or item in this probing fashion. They then wriggle a slit, stick their fingers down in there to get it (or "pry" or "pop" it out) and so forth. The theory being, that this circumvents anyone who might say you're "digging". The semantics becomes, that you try to say "no, I'm only 'popping'" and so forth.
The only thing I have to say about that, is the following:
1) Sure, if someone is really worried someone is watching, then they can try this. But me-thinks that even though YOU and I know this might *technically* be termed something other than digging, did you really think the busy-body is going to instaneously see and deduce the same thing? No. Of course not. They'll simply see you bend over and start poking the ground, and say "aha! he's digging!". And if you (or he) goes to city hall to "clarify" this, .... do you really think they want to be bothered with this semantics debate? I mean, what do you THINK the easy answer is going to be? And even if it's true that you leave absolutely no trace, and truly truly don't "dig" (as in .... "bringing up soil" in your method), you have to put yourselves in their shoes: If they say "yes" to you, then it's a perpetual un-ending policing thing (in their mind), of that the next guy might not be so careful. Thus it's much easier to say to someone "that still constitutes digging, so we're going to have to tell you 'no'". And guess who will win that debate? They will, of course. Thus if someone's going to try this tactic, sure. But let them do it, without asking ANYONE "does this qualify?". Just go do it. If someone has an issue, let them say "but I wasn't digging, I was only popping". Because to think you can nip such an encounter in the bud before you start, will and does often-time simply lead to "no's", when no one might ever have cared or noticed. I'm not saying the logic isn't logical, I'm just saying, I wouldn't put it past someone else's "princely say-so". I would just do it, and ...... if something ever became of it, figure I'm within the law, till-told-otherwise (lest I merely preclude myself from hunting sites from the git-go).
2) Unfortunately some deep turf hunting (for stratified old turf where the silver and oldies are deeper) is just too deep to do such a thing. In other words, "popping" might work for shallow clad, .... but no, you're not going to wriggle out a barber dime from 9". Sure, you can try, (with a really long probe, etc...) but by the time you're done, and the time you get it out, you're going to have a little soil moved, disturbed, removed (read "dug") no matter how you slice it. It will be messy enough, that you'd have actually been cleaner and neater if you'd have just cut a frickin' plug to begin with.
3) if you're probing around for old coins ....... heaven help you when you scratch that 1916 d merc, the 1909 s vdb, and so forth. For clad, no problem. But for old silver coins? No thank you. The LAST thing I want to do is make contact with them with my probe and scratch them.