Here's my take as an LEO in CA...
Unless I WITNESS you or have a witness who can confirm you were taking or attempting to take a mammal, fish, bird, reptile, or amphibian I have no case. Yes, sometimes it's frustrating to let badguys walk when you KNOW they were up to something, but the VAST MAJORITY of sportsmen/women are GOOD responsible folks enjoying the resources that belong to us all. I know every agency has an officer who would "articulate" their observations in a manner to score a "Stat", but I'm proud to say that the majority of us out there feel pretty much the same way I do.
To surrender our liberties to "Feel" better is a step closer to a dictatorial society. The righteous many should not be controlled by legistlation because of the actions of an evil minority of wrongdoers.
I don't want this to turn political, but I was asked what I would do if I found an archer stump shooting in the forests and fields we enjoy and are fortunate to share...
I would quietly observe the activity undetected for a while (if possible) to see if there were ANY indications the archer was attempting to take game or fish. If no indication was observed that would lead me to believe nefarious activity was at hand, I would then contact the archer in a friendly manner (Obviously utilizing proven officer safety tactics) and engage them in conversation to see if they gave/admitted any reason to believe they were doing anything but recreating without any risk of harm to the native fauna. I'd confirm their explanation by checking their equipment and once satisfied the archer was just practicing/stumping, I would wish them a fine day with accurate shooting and to return home safe with few lost/broken arrows.
When the story, equipment and my (or any witnesses) observations don't match up or freshly taken game is found, that's when I proceed with other options.
Is it tough putting all these pieces together? ABSOLUTELY, but we are able to do it with enough frequency that law enforcement agencies are a deterrent to those who walk the line, but who are sometimes tempted by opportunity. The probability of getting caught and never knowing "WHERE" we may be is what keeps honest people on the right path. The ones who disregard the rules written by and adopted by "Sportsmen/women" will greedily "TAKE" game/property whether or not more "emotion based" or "Feel Good" legislation is passed.
SO... Is it easier to stump shoot with a hunting license? Absolutely, but it's not mandatory. If you do buy a hunting license (even if you are a non-hunter) your money at least supports habitat managment and the wildlife we all enjoy seeing.
We have enough laws (too many in this state), we just need more witnesses willing to come forward with quality detailed information (seems EVERYONE has a cell phone with a camera in it these days....and they are a HUGE help). We'll take it from there.
If everyone followed the Sportman's Ethical Code, I'd be happy to find another way to make money. Until that time, I am honored to act as a guardian to protect my fellow citizens, our wild places and it's inhabitants. I also consider most sportmen/women some of the most patriotic and down to earth people living in this country today and am happy to call many of those I have crossed paths with....Friends.
All the Best,
Mike