There is a certain lag time
between some bespecticled bean counter with an attitude ringing your doorbell, and the local gendarmerie ringing that same doorbell with an officious-looking paper. In that lag time, you can:
1) Delete everything "illegal" from your computer. (Indeed, with sufficient backups, you could potentially delete everything from your computer, except for DOS playing 'pong'.)
2) Get your lawyer on site, so that any papers that might be served would be serverd properly, all I's crossed and T's dotted, etc.
3) If you are a SOHO, close your doors, and un-ass the premises. I do not believe (although IANAL) that a search warrant can be served when the premises are not occupied.
4) Move any offending machines off-site. In fact, if the vermin insist on taking your computers, by having some of them off-site, you can at least remain in business.
5) Call your uncle at the courthouse and tell him to tell that same bespecticled bean counter with an attitude to bugger off!
(This is an inclusive OR...)
May not be totally effective. but it may prove somewhat satisfying to at least let the morons know that they are not as omnipotent as the storm troopers the pretend to be.
jb4
(Resistance is not futile...)