From ET 12/7/2000 - note comment about IR and loyalty card da ta!!

[Adam Atkinson (ETL)]

> It was recently revealed that they have approached
> supermarkets to obtain loyalty card files. They say the
> information is useful to determine whether a person's
> spending pattern matches the way of life implied by his
> tax return. 

Hmm. Memories of the one-off "redditometro" add-on booklet
to the 740 tax return form in Italy some times in the early
90s which tried to do the same thing.