Opposition leaders gathered outside the Directorate of Criminal Investigations (DCI) headquarters in Nairobi on Monday, demanding answers over the arrest of Mukurwe-ini MP John Kaguchia and calling for investigators to follow due process.

The leaders, among them Makueni Senator Dan Maanzo, Kathiani MP and National Assembly Deputy Minority Leader Robert Mbui, and Kajiado North MP Onesmus Ngogoyo, arrived at the DCI offices along Kiambu Road shortly after Kaguchia was brought in for questioning.

Kaguchia was arrested earlier in the day outside the Royal Media Services premises after spending the night inside the media house, where he had remained following an appearance on Inooro TV's Kiririmbi programme.

Addressing journalists outside the DCI headquarters, Maanzo said the opposition's immediate concern was to ensure the legislator had access to his lawyers and that any investigations were conducted within the law.

"If there is a case against him, let him be processed in accordance with the law and presented before the court. That is the proper legal process," Maanzo said.

He added that Kaguchia's legal team had sought access to the MP while also requesting information from detectives on the progress of the investigation and the next steps.

Robert Mbui echoed those concerns, saying the opposition was not seeking to interfere with investigations but wanted constitutional safeguards respected.

"We are asking that due process be followed and that his lawyers be allowed to see him. That is what the law requires," Mbui said.

He said opposition leaders had assembled outside the DCI offices to monitor developments and obtain official information regarding the investigation.

Several opposition politicians and supporters also gathered at the premises, waiting for updates from detectives and members of Kaguchia's legal team.

The arrest followed remarks attributed to the legislator during his television appearance, which later sparked public debate and criticism from some political leaders.

By Monday morning, however, the DCI had not publicly disclosed the specific offences under investigation.

The incident has added to growing public scrutiny over the handling of arrests involving political figures, with opposition leaders insisting that investigations should proceed transparently and in accordance with the Constitution.