Scenario: Reuven & Shimon are at the Beth Din of America in Manhattan and are testifying that Levi completely wrecked Yehuda's Manhattan apartment on March 17.
Suddenly: Dan & Naftali come in mid-testimony and say "We don't know whether or not Levi wrecked Yehuda's apartment, but we're here to testify that that you were with us in LA on March 17."
This sounds like a textbook case of Eidim Zomemim (conspiring witnesses) right out of the first perek of Makkos!
For death/ lashes/ fines - there's no court of 23 or Sanhedrin nowadays which would be able to administer death/ lashes/ fines.
In monetary cases... (which ARE still applicable nowadays)
Is it possible for a case of Eidim Zomemim to happen in today's times?