'some form of identification' is an acceptable phrase in written English.
You can use it when you want to refer to any kind of document that proves who a person is. For example, "You need to bring some form of identification to get into the building."
Already, 25 states, including Missouri, require some form of identification at the polls.
Apparently, the man identified himself and produced some form of identification.
Better still is to press your source for some form of identification.
And when customers sign up, they have to produce some form of identification.
Some already required some form of identification, Mr. Butler said, but many did not.
A total of 30 states will require some form of identification, according to the National Conference of State Legislatures.
Critics argued that some voters lacked those documents and that the law omitted some forms of identification, such as student IDs, held by blocs of voters who favor Democrats.
Voter ID laws require people to show some form of government identification before they can cast a ballot.
In all, 31 states have some form of voter identification law in effect for next week, according to the National Conference on State Legislatures, including seven with strict requirements for photo IDs.
Get your dog some form of permanent identification, like a microchip, and make sure you have all of the documents necessary to prove ownership of your dog in case he or she ever does go missing and is recovered.
One scientist told The Canberra Times, "If you want to find me, it's impossible unless you make an appointment, sign in with some form of photo identification, and are personally escorted to my door… That's directly as a result of threats made against me".
