And these are used ruthlessly by the middle classes as a barely covert form of social and academic selection.

Just as some high-net-worth families travel by motorcade while others prefer plain-clothes protection officers, home security comes in overt and covert forms.

The secondary coverts form orange epaulets.

He seems also to have had ties to the world of covert intelligence.

Case officers plan and carry out covert intelligence operations abroad.

Covert intelligence will always have a place, but these are the games of an earlier age.

Beards are also permitted to special forces when on covert intelligence operations or behind enemy lines.

And the intelligence records, often obtained through covert means, were shredded or put into store lest they betray state secrets.

In recent low-intensity conflicts, additional covert means have been added.

The purpose of these programs was to investigate whether and how it was possible to modify an individual's behavior by covert means.

A series of public appeals were made and national law enforcement agencies were drawn into the manhunt which used a range of covert methods and surveillance techniques.

The covert methods used to get the evidence needed to run the story highlight problems and dilemmas papers face when conducting journalism in the public interest.

They needed more covert methods and were prepared to leave their fields and walk 100 miles for them.

The study says they employ a variety of covert methods, including travelling with false documents, concealing themselves in vehicles or by overstaying visas.

Their covert methods of waging war contrasted the ninja with the samurai, who observed strict rules about honor and combat.

Even if he was sent on a covert mission, he could probably have warned you he was going to be out of touch.

Together they plan a covert mission and successfully retrieve the jewel.

The money was to cover his expenses and the cost of messengers on his covert mission.

The special forces know these planes are vital to the success of covert missions across the globe.

Their covert mission has been a success.

Detectives bugged the family home but gained no evidence from the covert operation, the trial was told.

Police then carried out a fivemonth covert operation before swooping.

Other interested parties, including senior jockeys and trainers, have been closely involved in this almost covert operation.

Clearly there has been a slow covert operation to make sure the information they were acting on was 100 per cent accurate.

A covert operation to rig the contest and a counter-operation to expose it.