covert observation

covert observation

any observational study undertaken without the permission or awareness of the persons or organizations studied. Ethical objections are sometimes made to this way of proceeding. See also UNOBTRUSIVE MEASURES.
References in periodicals archive ?
They have been asked to mount covert observation in areas where the police and security services suspect he may be.
The Special Reconnaissance Regiment will mount covert observation in areas police and security services believe he may be.
The proposed method is resistant to covert observation, recording, and brute-force attacks.
Also on the ground are the Special Reconnaissance Regiment which specialises in covert observation.
He kept covert observation by a post box and gave information on comings and goings to the then Bright Street sorting office (now Cannon Park).
But just 74% of 2,144 people seen entering MCP rooms wore gowns in a covert observation study coordinated by Dr.
Three gunmen pulled up in an estate-type car and fired about 10 rounds at the covert observation point near Khost at about 6am British time yesterday.
Three gunmen pulled up in an estate car and fired ten rounds at the covert observation point near Khost at 6am British time yesterday.
Visual observation continues to be an integral part of the covert observation arsenal.
Covert observation involves attending to private sensations, such as a toothache, or engaging in imagery.
Covert observation was kept on Noye but was blown by crooked detective John Donald, who tipped him off.