I get what you're saying, I just don't buy it. To use your example, I'm fairly sure the cop who is in the process of restraining the suspected perpetrator isn't going to stop and ask for a tag to be run in the process of subduing him. Instead, I think logic would dictate that, after the perpetrator is subdued/controlled (e.g., handcuffed and placed in the back of a car), there will be plenty of time to check the tag on the back of his car.
Theoretically, sure, front plates are a time-saver. So would mandating that people wear their ID's stapled to their foreheads, but we don't do that and yet still manage to identify people without too much of a problem.
No, it's not the biggest deal in the world. A lot of shit we complain about it's that big of a deal. Doesn't mean it's not relevant though. And, simply saying it's not a big deal doesn't justify a bad use of front plates, does it?
Just so you know, I'm not some anti-cop/government-libertarian-compound-in-Montana guy. I just fail to see how front plates truly assist law enforcement officials. You saying it saves them time makes sense in theory, but doesn't quite pan out in my head when I consider the practicality of it.
No offense meant by any of this. You come across as an intelligent guy and I respect a lot of what you post. I don't want to shut down an intelligent conversation by having someone misperceive this as flaming.