Hi Biglu99,
I'd never heard of government sites that check the messages for malware, but sine the attachments, especially PDFs, often contain malicious code I suppose that's not surprising.
Since the fake (Spam, Scam, Phishing, whatever) messages inherently show at least minor malicious intent, I always assume any attachments may include malware and thus treat them with care.
I suppose it's less likely we'd see such a service via the government here in the US, since the separation of powers and the fact we're the source of most major AV and other security apps means that's generally left to the commercial sector. The government here concentrates on general public information and creating the necessary laws for other agencies to enforce.
I guess a crime unit being in enforcement though might give people certain expectations, but that's probably the last place I'd think of here in the US, since the computer industry including Microsoft are highly involved in both detection and enforcement, even internationally. Then again, I've been deeply involved in both the industry and security throughout my career going back to the earliest forms of malicious code, including early theoretical and proof of concept ideas that were discussed by students at the engineering school I attended over 40 years ago.
Rob