The court heard appeals from Martinsons and another suspect, Edgars Teterovskis, against keeping them in custody, but rejected their effort.
The detention of the pair, plus several other suspects, is in place at the request of the Corruption Prevention and Combating Bureau (KNAB), who continue to investigate allegations of large-scale corruption at the municipal transport company involving cooperation with law enforcement officers in Poland and the Czech Republic, as previously reported by LSM.
Martinsons is also a suspect in another case being investigated by KNAB, involving allegations that he helped Latvian Central Bank governor Ilmars Rimšēvičs solicit large bribes - a claim denied by Rimšēvičs and yet to come to court.
