A disciplinary hearing for a veteran New Canaan police officer convened Wednesday morning at the police department, focusing on whether the officer accepted health insurance for his ex-wife after their marriage ended.

The hearing before the police commission is meant to determine what punishment -- up to and including termination -- might be imposed on Sgt. John Milligan after an internal investigation by New Canaan Police Capt. Vincent DeMaio.

On Wednesday morning, at the start of the hearing, Human Resources Director Cheryl Pickering Jones offered protracted exposition about a request from New Canaan Police Chief Leon Krolikowski to Jones to find out whether Milligan was married and a discussion of Milligan's actions through an online benefits website to modify his insurance coverage.

The police chief's questions about his marital status were related to whether Milligan notified the town about his changed marital status and whether Milligan took the proper steps to assure his ex-wife was not receiving medical coverage, Pickering Jones said.

Jones said ex-spouses are not eligible for insurance coverage.

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Citing violations of his civil and employment rights, Milligan, the head of the New Canaan police union, notified the town in a letter sent earlier this month of his intention to sue the town, the police department and Krolikowski.

Milligan served as president of New Canaan Police Union Local 1575, which represents 46 unionized rank-and-file officers, including sergeants and lieutenants, up through the beginning of 2015, but it was unclear on Wednesday whether he continued to be the leader of the union.