BUENOS AIRES — An Argentine judge on Thursday dismissed criminal allegations against President Cristina Fernández de Kirchner that had been brought by a prosecutor who had accused her of conspiring to shield Iranian officials from responsibility for the deadly bombing of a Jewish community center here in 1994.

Judge Daniel Rafecas decided that the criminal complaint the prosecutor, Alberto Nisman, put forward before his mysterious death last month was not sufficient to open an investigation of the president. In the 63-page decision, Judge Rafecas said that the allegations did not “minimally hold up” and that there was “not even circumstantial evidence” pointing to Mrs. Kirchner.

The criminal case, which had been revived by another prosecutor after Mr. Nisman’s death, sought to charge the president, the foreign minister and other political supporters of Mrs. Kirchner.

The original complaint by Mr. Nisman, the lead investigator into the attack on the Jewish center, which left 85 people dead, had described a complex web of back-channel negotiations, accusing Mrs. Kirchner of directing an effort to reduce pressure on Iranians wanted in connection with the bombing in exchange for trade benefits.