It is 100% not an issue. The human eye and ears can’t tell if some video or audio is fake, but you cannot hide from the machine. Deep technical analysis will easily reveal something is manufactured, as easily as it can tell an image is photoshopped.

And God help you if they discover you manufactured evidence. Manufacturing evidence raises the stakes considerably. It makes any crime instantly more heinous, proves you deliberately had bad intention. You might go in thinking you’ll win easily with manufacturerd evidence and come out with greater felonies and complete eradication of your reputation.

You think you might be so fucking smart using off the shelf components to make yourself a deep fake, rest assured there are always people smarter than you out there. Intellects vast and deep that will easily pierce through your lies and destroy you. Do not attempt to provoke them. They will relish in picking your remains apart.