We need to get to them for surveillance purposes, and we're still working on a system to do that.

I got from them clothes, disguise materials, equipment convertible to surveillance purposes, and went about collecting data for myself.

No standard syndromic grouping is yet in wide use for surveillance purposes.

A spokesman for the Jets denied that the team uses video cameras for surveillance purposes.

Post-9/11 they have continued down that path while adding more semantic monitoring abilities for surveillance purposes.

To our knowledge, automated medical record information has not been used for rapid surveillance purposes.

The house looking in the direction of Middle Harbour meant that it could be used for surveillance purposes as well.

Others have been used for surveillance purposes, including during the 2004 Summer Olympics.

Data used in the analysis were collected for surveillance purposes.

Assange says that he has chased away strangers who have tried to take his picture for surveillance purposes.