An oblong crystal the size of a cigarette packet was next to a pair of dividers - suggesting it was part of the navigational equipment.

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They were pleased to hear Tory health spokesman Jackson Carlaw reassure them it's not their fault that people choose to be unhealthy, while he committed the Scottish Tories to opposing their Westminster colleagues on proposed moves to standard and plain cigarette packet design.

BBC: Shelves in a shop

The profession in the Alsace region has been deeply hurt by increases in cigarette taxes since 2002, which mean that a packet on the French side of the border is 20% more expensive than in neighbouring Germany.

BBC: Strasbourg split on EU vote

That is plotting cigarette tax revenue as a percentage of GDP (vertical axis) against the percentage of the pricer of a packet of cigarettes that is tax (horizontal axis).

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