The system of ElectronicScanMultibeamConstant Difference Amplitude Comparison(ESCDAC)direction measurement is widely applied inmodernradarinterceptionreceivers.
The Home Office's policy document, for example, makes no reference to the fact that the Department of Trade and Industry has just published its own draft bill on the interception of electronic communications.
Declan McCullagh at CNet wrote about the police desire to conduct online investigations more efficiently a few months back, explaining that law enforcement wants a private Web interface to make interception of electronic messages easier.