On 02/08/2014 11:06, Brian Reay wrote:

It would have to be enforced by catching then doing it. Then lock them
up for a long time, in a real jail. None of this nonsense of TVs and
time off for good behaviour etc. Such people seem incapable of behaving
themselves so they will some betray they presence and can be reported.
If they have, say, a USB stick which has software which permits them to
use a machine and leave no trace, that should be enough.

Er, precisely what crime is committed by leaving to trace on a machine?
Presumably you would like all the posters on here who use a pseudonym to
have fifty lashes each?

Les.