US: FCC claims right to search your house any time, night or day, without a search warrant. Source: http://www.realityzone.com/currentperiod.html
FCC’s Warrantless Household Searches Alarm Experts
By Ryan Singel May 21, 2009
You may not know it, but if you have a wireless router, a cordless phone, remote car-door opener, baby monitor or cellphone in your house, the FCC claims the right to enter your home without a warrant at any time of the day or night in order to inspect it.
Continues: http://www.wired.com/threatlevel/2009/05/fcc-raid/