special precautions; heightened vigilance
Used in official or formal contexts to indicate a state of increased alertness or targeted preventive measures, often in public safety, health, or security domains.
The government sent additional support to areas under special precautions.
A heightened vigilance posture was put in place.
警戒 is general vigilance or warning; 特定警戒 adds the nuance of targeted or special measures for a specific situation.
Compound of 特定 (specific, particular) and 警戒 (vigilance, precaution). A modern term often used in administrative and crisis-management contexts.