So you're saying that the agreement is bilatteral CH/Germany, CH/France, CH/Italy? (Obviously, as a Swiss resident, I'm not interested in German/Italian agreements etc.)

Oh dear. Didn't know about the Italian one. Thought that just applied to the French. Oops.

Reason why I'm looking for some "official" information is that it looks like these agreements will spread, and it seems likely that the "official" documentation will reflect that more quickly than hearsay, and is likely to be more accurate too.

Le Matin Suggests that there is no official agreement between Italy and CH and concentrates on the official and automatic sending of fines from France, It says that the Transalpine Police can obtain information regarding infringements via the customs office in TI. Knowing the Italian Police, it's unlikely that they'll bother for small infringements, and even if they did, the fines would have no legal basis in CH. However if you decide not to pay, don't ever get stopped by the police in Italy because you'll wind up getting arrested.

It does imply that there is an official agreement with Germany, although the fines are not automatically sent as in France, and have to be manually made. In addition, it implies that it's not going to be long before there is an EU ruling on the matter.

Is it just me, or does anyone else think Switzerland is slowly entering the EU via the back door.. So much for it being a Neutral State.