rjay259
I very much doubt that the police will have anything other than the normal issue breathalysers.
It may be that he blew amber and while as a traffic offence that would be a word of warning it could be that the officers knew the aviation limits and had enough to warrant a further test back at the station.
If what I've seen on TV is anything to go by if he blew under the limits on the station machine I would have thought he would have been released there and then. Given that this went further there must be something else we don't know about.