Truro City administrator Kate Breese says the club are right to employ goalkeeper Luke McCormick.
The 29-year-old on Saturday after being released from prison earlier this year.
The former Plymouth Argyle goalkeeper was jailed in 2008 for killing two children in a car crash.
"Certain people may have concerns over Luke's past but his past is precisely that," Breese said in a statement.
"Luke has served the time deemed appropriate by the judicial system and that chapter is now closed.
"Luke has been extremely remorseful over the cause of his jail term but as stated, the sentence has been served and there is no benefit to anyone in not allowing him to play the sport that he loves and has great ability at," she added.
McCormick has signed on a non-contract basis and is playing for the Blue Square Bet South club for free while regular goalkeeper Tim Sandercombe recovers from injury.
Truro are subject to a because of and Breese says McCormick's decision to play without being paid is helping the club.
"With the embargo in place, the financial restrictions of administration and a mounting injury list, Luke's experience and undoubted ability is very much needed," she added.
"The club is at its bare bones and it has been essential to recruit a goalkeeper.
"With Luke prepared to play for free combined with the club's current financial situation then this signing has been a matter of necessity.
"Luke has proved himself at Football League level and is willing to play for Truro City FC for free. As such, there is no question that adding Luke to the squad can only help this cause.
"With the club currently at the bottom of the Conference South, we need the strongest team possible to try and pull the club out of the relegation zone.
"We are doing everything we can off the field to save the cub and keep it in The Football Conference but we also need to ensure that the first team has the support to have the best possible chance of survival on the pitch," she added.
McCormick was released from prison earlier this year after serving about half of a four years and seven months sentence for causing death by dangerous driving.
He played 157 games for Plymouth Argyle prior to being jailed, the last in the Championship against Wolves in May 2008, but failed to win a contract with Swindon during a