This is the reason government regulation never works as well as the regulators expect. It is the distinction between "tacit" knowledge and "explicit" knowledge. Most tacit knowledge is both local and non-verbal, some can be explained after the fact, like the chick sexing technique, but the verbal description itself isn't the useful part. And it is contained in the heads of the people actually doing the work so it is rarely, if ever, taken into proper account when formulating regulations.

For a really good explanation of the differences and the problems caused, read Thomas Sowell's Knowledge and Decisions. Hayek's Use of Knowledge in Society also discusses this, as do other books and essays, but Sowell's is more readable and his examples are closer to contemporary (it was written in the late 1970s and published in 1981).