Skip to main content
  1. Home
  2. Emerging Tech
  3. Legacy Archives

Denver cops use “smell-oscopes” to sniff out dope smokers

Add as a preferred source on Google

As you may or may not have heard, Colorado legalized recreational marijuana last year. After an overwhelming majority of the population voted to amend the state’s constitution to protect personal use of marijuana for adults, the state established a framework to regulate cannabis in a manner similar to alcohol. But the passage of this law has come with an unforeseen consequence – apparently all the dope smoke in the air is offending the nostrils of innocent, non-smoking citizens.

In order to combat this kind of pot pollution, the city of Denver has passed a new “odor ordinance” that carries a $2,000 fine for anyone found guilty of polluting the atmosphere with smell. So, to investigate odor complaints more effectively, Denver Police are using a ridiculous bit of tech called the Nasal Ranger Field Olfactometer –  a device that’s basically a handheld smelloscope.

Recommended Videos

It’s actually a pretty ingenious device. It works by delivering varying ratios of filtered and full-odor air to the operator’s nose. Mellow smells tend to wash out when mixed with small quantities of purified air, but a particularly odiferous smells can remain detectable at a 500:1 ratio. Check out this video from the History Channel’s Modern Marvels to get a better idea:

Apparently these things aren’t all that new either. Olfactometers have been used to monitor offensive/dangerous odors production in agriculture and industrial facilities for years, but it wasn’t until recently that they were adopted to combat stinky stoners. Wielding one of these smelloscopes, officers can issue fines to any smoker/grower whose herbs can be smelled beyond an 8:1 clean-to-stinky ratio. Denver PD anticipates an upsurge in smell complaints to come in after retail sale of marijuana becomes legal on January 1st of next year.

We just hope these types of odor laws don’t extend past pot regulation. If we take anti-stink legislation too far, soon we’ll be throwing people behind bars just for farting in elevators, leaving lettuce in the fridge for too long, or burning popcorn in the microwave. Legislating against aromas is a slippery slope, Denver. Please don’t get carried away.

Drew Prindle
Former Senior Editor, Features
Drew Prindle is an award-winning writer, editor, and storyteller who currently serves as Senior Features Editor for Digital…
After a week with Gemini Notebook on my Galaxy Z Fold 8 Ultra, I can’t imagine using it on a slab phone
Computer, Electronics, Screen

Gemini Notebook has become one of the apps I use more than almost anything else. Whether I'm researching for a feature, studying for hours, or trying to make sense of a stack of PDFs, it's almost always open somewhere on my phone. Over the past years, I've used it on just about every kind of device imaginable, but one thing kept bothering me. It never really felt like a notebook.

Don't get me wrong — it worked perfectly well on a regular phone. All the features were there, and I never felt like I was missing anything. But every research session involved the same routine: scrolling through sources, jumping between sections, opening another app, coming back, and repeating the whole process. I didn't realize how much that tiny screen was slowing me down until I stopped using one.

Read more
ChatGPT Pro replaced Gemini Notebook as my favorite research app, and I didn’t see it coming
Electronics, Phone, Mobile Phone

I've been using Gemini Notebook ever since it launched, and for the longest time, it was my go-to app for just about everything. Whether I was researching a topic, organizing work, or studying something new, it became one of those apps I instinctively opened without thinking. When Google kept adding new features, I genuinely believed it had secured a permanent spot in my workflow.

Then, almost without realizing it, ChatGPT Pro took over. I've been using its Work mode for a while now, and somewhere along the way, it replaced Gemini Notebook. Of course, it wasn't an overnight switch. I kept bouncing between the two for weeks, but I gradually found myself reaching for ChatGPT every single time instead. At some point, I realized I hadn't opened Gemini Notebook in days. Now, I honestly don't use it at all.

Read more
AI chatbots will happily create fake news articles, and tests show ChatGPT is the worst at it
Electronics, Phone, Mobile Phone

The biggest AI chatbots are supposed to help people find information, not manufacture misinformation. But a new investigation suggests that separating those two jobs isn't as straightforward as many AI companies would like users to believe. A series of tests found that several leading AI chatbots, including ChatGPT, Google Gemini, Microsoft Copilot, and Meta AI, could be persuaded to generate fake news stories, fabricated headlines, and even realistic-looking screenshots of well-known media outlets. While every chatbot showed some weaknesses, ChatGPT reportedly performed the worst, producing the most convincing fake content with surprisingly little effort.

The findings come from an investigation by German newsroom CORRECTIV, which tested how the AI assistants responded when asked to create false reports involving sensitive topics such as election fraud, government coups, war, vaccines, climate change, and conspiracy theories.

Read more