In November last year, a serious theft was carried out against Ica where two store employees are suspected of having collaborated with the thieves and staged a robbery.
The thieves came across more than 260,000 kronor.
In February this year, a smash and grab coup was carried out against a goldsmith's shop in Borgholm, where the perpetrators backed into a car through the entrance.
The stolen goods also exceeded a quarter of a million kronor here.
That same night, two men suspected of the theft were arrested.
The 26-year-old man from Kalmar was arrested on Friday on suspicion of having handled the stolen goods from the goldsmith's shop.
The police suspect that the same constellation may be behind more burglaries and robberies.