If you’re looking to stream CSI: Crime Scene Investigation for free (yes, 100% free), you can do that completely legally at the moment (May 2026), here’s how to do it in just a few simple steps:
At the moment, you can stream all episodes of CSI: Crime Scene Investigation and CSI: Miami for free via Paramount+, a service you can use for free via Prime Video with a 7 day trial (even if you don’t have Prime Video). It’s super easy to start and cancel this free trial, and as long as you remember to cancel the Paramount+ free trial after you’ve watched the episodes, you won’t be charged anything at all. There’s no catch – this is just a great way to stream this series for free in crystal-clear quality without any annoying pop-up ads or sketchy websites!
All you need to do is:
- head to the page for CSI: Crime Scene Investigation on Prime Video
- start the 7 day Paramount+ free trial
- watch all of the episodes in amazing quality
- cancel the Paramount+ free trial before the 7 days are over (it’s best to cancel the trial straight after you’ve finished the episodes, it’s easy to do this by going to the ‘Memberships and Subscriptions’ section of your account)
- and that’s it – you just watched all of CSI: Crime Scene Investigation in amazing quality for free!
It’s really easy to cancel the free trial and as long as you remember to do it after you’ve watched the episodes, you won’t pay anything, as explained on the CSI: Crime Scene Investigation Prime Video page.
Don’t have Prime Video? No problem!
Even if you don’t already have a Prime Video account, that’s no problem either – you can still start the free trial for Paramount+ as long as you have an Amazon account:
As long as you remember to cancel the free trial before the 7 days are up, you won’t pay anything! Learn more on the CSI: Crime Scene Investigation Prime Video page here.
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