A New Canaan resident complained to police that an IRS "officer" contacted him claiming there was a warrant for his arrest.

New Canaan Police Chief Leon Krolikowski said the calls are false and are a scheme to extort money. The telephone number of the fraudulent caller is 202-241-0697, which has been reported as being used in scams across the country.

The IRS wouldn't call people threatening police arrest, deportation or license revocation if they don't pay immediately, Krolikowski said in a press release. Generally, the IRS will contact taxpayers on a federal tax issue via mail, he said.

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Fact box

Following are tips from the New Canaan Police Department:

Never give personal information (dates of birth, social security numbers, credit card numbers, bank account numbers, computer passwords, etc.) to unknown people over the telephone or electronically.

Be suspicious of unsolicited telephone calls and/or e-mails.

Always check information that is provided by the caller to ensure it is accurate and legitimate.

Avoid conversations with unknown callers.

Never wire or send money in response to an unknown caller who makes an unexpected demand.

Contact the police department at 203-594-3500 for assistance.