Man who videotaped himself BASE jumping in Yosemite arrested, says it was AI

3 days ago (latimes.com)

If it "was AI" it should be easy enough for him to prove by pulling up his account on whatever AI video generation service he used and showing the generation in his account history.

(I do not think it was AI.)

  • True, and I agree with you on it not being AI, however, the burden is on the prosecution to prove guilt, not for a defendant to prove innocence.

    But you are correct, if it was in fact AI, showing how he (or someone else) made it at the time would certainly help get him off the hook.

    Guy could've probably picked a better place to base jump anyway, national parks are notorious for having a billion laws that don't really exist anywhere else.

    You can't even take your cat white river rafting on the grand canyon >:( https://www.law.cornell.edu/cfr/text/36/7.4

    • > You can't even take your cat white river rafting on the grand canyon

      What are the chances that rule came about because of a dead/lost pet or because of some wildlife that was eaten? I'm 50/50 it was either.

    • You can't even take your cat white river rafting on the grand canyon

      I've done Grand Canyon whitewater (part in an OC1, part in a raft). A law against animal cruelty isn't a bad thing.

  • Maybe he doesn't have to prove that though. If he can find an expert witness who will make claims that based on their expert analysis it is possible this video is AI generated, and he does not testify himself, then that may be enough to introduce reasonable doubt.

  • But shouldn't it be the prosecution proving the video is real?

    • They have to prove the case to the jury "beyond reasonable doubt". The jury are at liberty to decide that they don't believe an unsupported claim by the defence, and that the evidence provided by the prosecution is sufficient. As judges sometimes say at the start of a case, the standard is beyond reasonable doubt, not beyond all possibility of being wrong.

    • I'm not sure they have to bother. The video could be fake, and they still committed the crime. People certainly use AI and other tools to "enhance" video.

      The article mentions evidence placing them at the scene of the crime, wearing a matching outfit, and they can probably find witnesses.

    • Yes, but only if the judge who gets the case believes in silly things like "Federal Rules of Evidence."

    • Umm, no? In a criminal trial, a defendant cannot just claim an alibi like: "I was in another country", without showing some form of documentation like airplane tickets, credit card charges to hotels or restaurants, etc.

  • Also I’d be surprised if the only evidence introduced by the prosecution is the video. There may be other eyewitnesses, evidence of equipment usage, communications with others prior to the event about his intent, and so forth.

  • I don't think it was AI either but I don't think that would hold up in court.

There are lots of places to legally BASE jump in Europe. You can even take a gondola to the jump point. But very very few legal options in the USA.

I wish there were more places to legally enjoy BASE jumping on US public lands.

  • It's legal by default on US federal land, (e.g. BLM or USFS) which covers about a fifth of the country, and is especially concentrated in areas with mountainous and other earthen terrain that is favorable to BASE jumpers. We just take a very small portion of that land, designate it national parks or forests, make everything illegal there, dump all of our tourists there, and charge them to park.

    There's far more to see outside of those national parks and forests than there is inside. Look up any paragliders or bush pilots on YouTube that live near federal land, and they pretty much go wherever they want to go.

    If you're an avid hiker or camper and are visiting the US, find local documentation on where to visit or befriend someone in the area who can make recommendations, and you'll get to see our natural landscape without all of the tourists or regulations. You can legally BASE jump off a cliff, hike in the nude, mine for gold, set up an impromptu gun range, and camp there for a couple of weeks, or indefinitely if you hike two miles each day.

  • They don’t want to deal with the liability lawsuits.

    • They probably don't want to deal with the bodies either. One man's thrill seeking is another man's lasting psychological trauma.

    • Would there be liability lawsuits for this happening on public land? Might it be more a matter of them not wanting to do body clean up once a week?

      5 replies →

    • then we need tort reform to address the root cause. This is so silly and unfortunate that wild spaces are litigated and made illegal for things that are normal and wonderful elsewhere.

      2 replies →

Noteworthy that he claimed that when talking to an investigator prior to being charged. We'll see if he's willing to make the same claim in court. (He's apparently representing himself...)

  • That tracks. BASE jumping and representing yourself share a common philosophy towards risk.

  • >talking to an investigator prior to being charged

    Isn't lying to a federal investigator also a crime? Searching suggests 18 U.S.C. § 1001.

    • Yes.

      SCOTUS ruled very strictly on this in 1998. James Brogan was visited by Federal agents at his home and asked if he had accepted illegal cash payments from a company. Brogan simply answered "No."

      SCOTUS upheld his conviction for this under U.S.C. § 1001. His only legal options were to say “Yes” or state his choice to exercise his 5th amendment right to remain silent.

      Similar laws apply to interactions with pretty much any LEO in any US state, though the lie must be material to a criminal investigation. Note that some states make nearly everything a misdemeanor crime (like speeding 5mph over the limit) whereas other states make many of those things civil infractions.

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Gosh there's a lot of corollary evidence pointing to his guilt but this is likely going to become more and more common and force the use of a lot more technical forensic resources.

Finding an original copy on a go-pro would likely be pretty compelling evidence but this (and the more scary politically centered questions like this) are why I wish we had a way to build a durable chain of custody into these technologies. It is infeasible from everything I've seen but it would be a big win for society.

  • > Gosh there's a lot of corollary evidence pointing to his guilt but this is likely going to become more and more common and force the use of a lot more technical forensic resources.

    Nah. People who do something like this can't help but brag. They'll incriminate themselves in seconds voluntarily.

  • > I wish we had a way to build a durable chain of custody into these technologies

    Do you? Consider for a moment all the dissidents and protestors who would be ensnared by their own devices then, with no "it was all ai" defense available?

    • I do - I think the videos and pictures that protestors smuggle out become less powerful if the state can dismiss them as fake and while most of us will remain skeptical of authority the more easy it is to fake something the more people you can convince of your falsehood.

      I don't think the lack of a durable chain of custody really provides any protection - that protection needs to come from a strong legal system and social contract to protect whistleblowers. If you're thinking of, as an example, an Iranian smuggling out protest footage, they're already taking an extreme risk and have a state using numerous tools to try and track them down - but the lack of a durable chain gives a wide area of authorities to cast doubt on the truth.

      I think your question is interesting to ponder and I think there are arguments in both directions - but my mind keeps coming back to the tank man photo being smuggled out of China and how much more difficult it would be in the modern world for a single image to carry such weight.

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  • Couldn't you just match the noise profile of the camera with the video?

    • How do you find the camera?

      "I extracted and added the noise profile to the AI generated video with a goPro to make it look legitimate"

  • Put private key into every digital camera and hash/sign every frame. That private key is accompanied with manufacturer signature and can't be easily extracted. Mark all unsigned media as suspicious.

    • "and can't be easily extracted" is doing a lot of work there. People are very good at reverse-engineering. There would soon be a black market for 'clean' private keys that could be used to sign any video you want.

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    • "can't easily be extracted" = "the number of people who can extract it is small but still non-zero"

      And those people now have the power to put you in jail, by putting your camera's signature on illegal content.

      You've also just made journalism 3 notches harder. Like documenting atrocities in, say, North Korea. Or for whistleblowers in your home steel mill run by a corporate slavedriver.

      Oh. Also. Why are you choosing the camera side to put this on? Why not the AI side? Require watermarks and signatures for anything created in such a way…

      …of course that has its own set of intractable problems.

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We have to plan for this to become more common in future.

You trying to start a union in your workplace? Expect video of you jacking off in public to leak online. Video of cop mercilessly beating a black guy? Inadmissible, could have been AI.

It will only get worse as video and audio generation get better and better.

Was it legitimately his instagram account that posted the video?

If it was a brand new account, then it seems possible that it's a fake.

But if somebody also had to hack his account to make this video... I suppose it's not impossible but you'd really, really be pushing "reasonable doubt" to it's limits.

Why the hell is based jumping illegal?

  • Because it's very dangerous and first responders access in national parks isn't always easy. You can obtain a permit to do it, however, see this memo that summarizes the current situation:

    https://www.nps.gov/subjects/policy/upload/NPS_Guidance_Memo...

    • It seems danger and first responder access would also be a problem for free solo climbing, yet that gets a pass.

    • Maybe just refuse to try to help them? Why can't we let people win darwin awards anymore instead of criminalizing it? The people doing this are adrenaline junkies who often would LOVE to die this way if they had to. That's why they are doing it.

      For similar reasons, suicide should not be criminalized. Yes I am serious.

      https://en.wikipedia.org/wiki/Right_to_die

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    • The legal history is a bit more complex. TLDR: assholes that were BASE jumping in Yosemite in the early 1980s did things like throw burning barrels off the top of El Capitan and take trucks on trails not designed for vehicle traffic.

      Comparing the number of BASE jumpers (small thousands) and the number of hikers and climbers (millions) BASE jumpers just can't have the political influence for access.

      Random note, Brendan Weinstein who posted here on occasion recently died BASE jumping: https://www.reddit.com/r/SkyDiving/comments/1q6n7v2/brendan_...

  • NIMBYists concentrate their efforts on national forests and parks, so everything is illegal there. Cross the boarder outside of Yosemite, and you're in unregulated forestry land where you can camp for weeks without a permit and walk wherever you want.

  • Most likely to avoid wasting emergency services.

    Although, it would be nice if we could give people a general “I understand the risk and won’t ask for help if it goes wrong” waiver for dangerous activities.

Oof. Risky move.

If the prosecution can prove it was legit, that's prison for sure.

  • I am sure prosecutors have AI expert witnesses on speed dial. Would probably testify under oath they ran it through their own AI analysis and it came back as not AI.

    Even public defenders don’t bother with their own expert witnesses, much less a guy representing himself.

    • From another linked article:

      "Those who are caught and cited in Yosemite face fines up to $5,000."

      What an absolute moron, he turned a $5,000 fine (worst case) into two years of prison.

>>A license plate reader detected his car entering the national park on Oct. 7 and leaving Oct. 8,

This flock stuff is b.a.d.

  • It's not even the fact that digital evidence is being used in courts these days, the disturbing thought is, all in all, that it's not that implausible for malicious actors to fake anyone's activity. How would you prove that you weren't at the crime scene when there's a digital footprint of your phone's GPS data, corroborated by (albeit not crystal clear) images and video?

  • I'd probably be most inspired to make an AI video of doing something awesome in a national park just after having visited the park, too.

    They'll need a flock cam on the summit if they want to push that any further.