[jamesmus]

Thanks for the advice. Taking a 'burner' device (as you suggest) seems to be the way to go if you are worried about being forced to divulge the information on it (or confiscation). What worries me more is the possibility of being charged with some kind of offence just for 'importing' the technology. Seems unlikely I know and I wouldn't have even thought of it myself but there are several of us going and one of the party brought it up.