The primary object of an efficient police is the prevention of crime: the next that of detection and punishment of offenders if crime is committed. To these ends all the efforts of police must be directed. The protection of life and property, the preservation of public tranquillity, and the absence of crime, will alone prove whether those efforts have been successful and whether the objects for which the police were appointed have been attained.

It can be hard to set your exact location in a ridesharing app in Hong Kong because all the tall buildings disrupt your phone's GPS detection.

She had escaped detection somehow.

Sami took extreme calculated steps to avoid detection.

Sami wanted to avoid detection.

Early detection is the key.

In March 1999, Marcy and Butler announced the detection of the first true other "solar system" in which they found evidence of 3 planets orbiting a single star. The star is called Upsilon Andromedae.

Sami risked detection.

So far, there have been five detections of gravitational waves, thanks to the Laser Interferometer Gravitational-Wave Observatory (LIGO) and, more recently, the European Virgo gravitational-wave detector.

The critical control points for cranberry sauce include the washing area where berries are first received, filtration and metal detection points where any foreign materials are removed, a heat treatment pasteurization area, and acidity checks, among others.