Things derogatory to the common law are strictly interpreted.

Explanation

Any statute or grant that diminishes common law rights must be read as narrowly as possible — the common law yields only what is expressly taken.

Where this applies

• A court uses an exception to the common law as a basis for creating new exceptions.
• Someone cites a one-time deviation from common law as if it were a general rule.

See also

• 1.2.6 An affirmative statute does not derogate from the common law.
• 1.5.23 Extremities or subtleties of law are not law.