It's a case that's lasted four years.

On Sunday, a final Police Act hearing for Dorothy Nesbeth was held in Windsor.

The disgraced officer is now one step closer to learning her fate.

"We argued yesterday and today the penalties we say should occur as a result of the findings. Today we finished the submissions," says defence lawyer Patrick Ducharme

On July 28, 2010, Nesbeth was stopped at the Ambassador Bridge.

Customs officers seized a large amount of undeclared beer, wine and spirits.

But those charges were later dropped.

Since then, she's since been suspended with pay.

In October of 2014, Nesbeth was convicted of discreditable conduct for failing to declare goods and deceit for making false statements at the border.

In one final, tearful submission Sunday, Nesbeth told the hearing:

"In retrospect, I should have assumed all questions asked were directed at me as the driver. I should have answered for everyone in the car. This was an isolated incident and it will never happen again. It's not a true reflection of my character in its totality at all."

The prosecution is pushing for a complete dismissal of Nesbeth from Windsor Police.

But defence lawyer Patrick Ducharme argued for leniency, citing the nature of Nesbeth's offence and that it wasn't committed while she was on duty.

"We've asked for a penalty that falls far short of that. Would maybe demote her for a certain period of time. It would cost her financially, but it's short of dismissal and she would remain with the WPS," says Ducharme.

"She has exemplary letters of reference that speak about her good character. And she also had a whole bunch of evaluations and commendations with the police service that they are fully aware of," Ducharme adds.

But prosecutor David Migicovsky wasn't moved.

"Perhaps if it was one incident, we wouldn't be here today asking for dismissal," says Migicovsky.

A decision will be handed down on December 19.