Tajzadeh is best known for his activities in the second half of the 1990s, when he served as a deputy under two interior ministers and, for a month in 1998, as minister himself. In those years he was under constant attack from the principalists. He was accused of inciting students during the July 1999 student protests, which were provoked by an attack on the students’ dormitory in Tehran, and his name came up many times during the impeachment and trial of Abdollah Nouri, Khatami’s interior minister, who ultimately received a prison sentence.