A new, state-of-the-art crime lab is set to open in Nassau County.

Nassau hasn't had its own crime lab since December 2010, when issues about botched evidence forced the county to shut it down.

Some of the evidence collected since then has been sent to Westchester County and Pennsylvania.

On Wednesday, the county announced that a new, fully functioning crime lab would open at the Nassau County Public Safety Center in New Cassel.

Nassau County Executive Lauran Curran and District Attorney Madeline Singas were on hand for the tour.

Lab director Dr. Pasquale Buffolino says the new facility is "a long time coming for us."

The new lab will be handling forensic biology, drugs, latent fingerprints and arson evidence. Those components of the lab will open in June. There was no date set for when firearms or trace evidence would be tested.

Last month, the state's Commission on Forensic Science publicly expressed concern about what would be included in the lab. Defense attorney Brian Griffin says it can't be underfunded and must be well-maintained.

Initial construction on the lab began in 2015 at a cost of nearly $25 million, according to Curran. Its estimated annual operating budget is about $3.5 million.