NYPD Commissioner Ray Kelly on Friday visited Brooklyn’s Walter and Rose Martin to apologize for his cops raiding their home dozens of times.

Kelly  brought a cheesecake (and some humble pie) because of the repeat NYPD visits to the Martin’s Marine Park home — at least 50 — over the years.

The Commish rolled into the quiet neighborhood at midday, stopping in front of the Martins’ small, neatly kept house, a large American flag fluttering by the front door.

Kelly “went to apologize — and to explain,” NYPD spokesman Paul Browne said. “They expressed appreciation that the police commissioner came and they showed him pictures of their grandchildren.”

Earlier, cops had blamed a computer glitch for at least 50 mistaken police raids on the two-story home of the law-abiding elderly couple.

After news broke that Walter Martin, an 83-year-old war vet, and his 82-year-old wife continued to endure raids after pleading their case years ago in a letter to authorities, Police Commissioner Ray Kelly told detectives to fix the problem.

The dozens of raids, which the Martins faced up to three times a week over a period of eight years, stem from a fundamental technology mix-up that started when the couple’s Marine Park address was used to test an NYPD computer system in 2002, police said yesterday.

Since then, police have showed up at the house from precincts all over the city, banging on the Martins’ door searching for a different suspect — from alleged murderers to robbers to rogue cops — nearly every time.

(READ MORE: http://www.nbcnewyork.com/)