The public safety horse bolted ages ago, and Gov. Maura Healey thinks now is a good time to close the barn door against criminal immigrants.

As the Herald reported, Healey has ordered an inspection of all state-run emergency shelters and a “full review” of the intake process after one Dominican migrant was arrested at a site in Revere while allegedly possessing an AR-15 and about $1 million worth of fentanyl, the governor said in a statement.

“It’s outrageous that this individual took advantage of our shelter system to engage in criminal activity,” Healey said in a statement to the Herald Monday.

It was outrageous when “unlawfully present” migrants were charged with child rapes in Rockland, Great Barrington, Lowell and other Massachusetts communities. It was outrageous when ICE agents in the Bay State arrested illegal immigrants charged with drug crimes in their home countries. It’s outrageous, but not surprising.

As much as the “day late and a dollar short” scrubbing of state shelters comes under Healey’s aegis, the problem is one of Joe Biden’s making.

The president’s flimsy border policies have ushered in millions of illegal immigrants who made their way to communities around the country. Some were lucky enough to land in a sanctuary, or welcoming city, others hit the jackpot when their bus pulled in to Massachusetts, a right to shelter state.

The narrative from Democrats is that everyone is looking for a better life for themselves and their families. What they omit is that some of them, the ones that make headlines, try to build that better life with an AR-15 and a stash of opioids to sell.

How did they get in?

“When somebody is arrested for crossing illegally, there are limited checks on their background,” Chris Cabrera, a vice president of the National Border Patrol Council told NewsNation in the wake of Laken Riley’s murder last year. “Their fingerprints are run against our records here in the United States, and not all countries share their records with us. So if we don’t have access to their records, if they haven’t committed any crimes here in the United States, then all we have to go by is what they say.”

And what they say is that they’re clean and eager to start over in Massachusetts, New York, Colorado or wherever a drug trafficker/child rapist/murderer can set up shop.

“I’ve ordered an inspection of all shelter units, beginning with the Revere site, and a full review of our intake processes to determine any additional steps that we can take to prevent criminal activity in shelters,” Healey said in a statement.

Why should governors and other municipal leaders have to be the last line of defense for communities because the border vetting process is ill-equipped to do a thorough check?

What database or “intake process” would states have that border patrol agents do not?

Healey’s been had. New York City Mayor Eric Adam’s been had. So have all the Democratic leaders who cheered Biden’s reversal of Donald Trump’s tighter border policies.

Now, with illegal immigrant gangs wreaking havoc on New York streets and unlawfully present individuals busted in shelters with drugs and guns in Massachusetts. the question arises: do you still want to “resist” Trump’s tighter border controls?

Editorial cartoon by Gary Varvel (Creators Syndicate)