Courts continue to struggle with how to apply privacy law to searches of computers and electronic communications, with judges reaching conflicting conclusions when faced with similar fact scenarios. And they’re not alone. Companies sometimes take different positions depending on whether the government is doing the searching or the company itself is. One area that has been particularly knotty is how to apply the Fourth Amendment’s “particularity” requirement to digital searches. In In the Matter of Applications for Search Warrants for Information Associated with Target Email Accounts/Skype Accounts, a federal court in Kansas recently rejected applications for warrants seeking email and other content held by communications providers on the ground that the proposed warrants were not sufficiently particular in describing the scope of the information to be searched and seized. The ruling suggests that communications providers and other recipients of government warrants for digital data may want to consider requiring that warrants served on them specify how the government will filter out irrelevant content so its searches focus only on relevant information.