The goods and services under inspection--including housing, transportation, food, leisure and household supplies--are representative of executive spending patterns, and the selection of the cities reflects the request for corresponding data from the groups that use the study's findings.

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Request samples at a Kiehl's store (where the selection is usually larger) or a Kiehl's counter in a department store.

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Mr Choi has said he passed on a request from TPI to Kim Hong-gul for fair treatment in the selection process of the lotto license winner.

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But the BBC understands that an initial request for nearly 3, 000 additional officers has been oversubscribed, with some forces having to run selection processes.

BBC: Northern Ireland