A national law enforcement agency is a LEA in a country which does not have divisions capable of making their own laws. A national LEA will have the combined responsibilities that federal LEAs and divisional LEAs would have in a federated country. National LEAs are usually divided into operations areas.
A kilogram is more than twice as heavy as a pound. A kilogram consists of 1,000 grams, while the mass of 1 pound is only 453.6 grams, or less than half a kilogram.
A kilobyte is eight times larger than a kilobit. A simple 1 or 0, times eight of these 1's and 0's put together is a byte. The string of code: 10010101 is exactly one byte. So a small gif image, about 4 KB has about 4000 lines of 8 1's and 0's.