A man has appeared in court charged with the illegal possession of firearms.
Edward Finn (40) from Clonshaugh Avenue in Dublin was arreested in connection with the garda investigation into recent security van robberies.
Judge Anne Watkin granted him bail and he is due before Dublin District Court in four weeks.
Meanwhile, six people who appeared in court last night have had their periods of detention extended.
The Dublin District Court granted the gardaí a further 24 hours to question the six men.
A garda spokeswoman said that in total 25 people were being questioned in connection with the kidnapping of the Richardson family and the subsequent robbery of around €2 million from the Securicor cash transit company.
Eight people remain in custody while the other 16 people were released without charge.
Gardaí had suspected that an insider was involved in the series of ATM raids.
It was confirmed last night that one of the men arrested was an employee of a security company.