Reacting to the development, Senate President Bukola Saraki, who was physically upset, said the IGP would have called him in person to inform him of his absence.
"This action, whether we want to admit it or not, is a threat to this democracy we are all fighting for".
"Senator Peter Nwaoboshi is held by the Economic and Financial Crimes Commission and nobody is allowed to see him".
"He is being monitored and we continue to pray for him that he fully recovers from his predicament".
According to reports, the FIR linked them to Tuesday's incident at Area One Roundabout, Abuja, where Melaye was said to have jumped out of a police moving van headed for Kogi state.
The senate president, however, confirmed that Melaye hadn't eaten anything in 24 hours, as at yesterday afternoon. "For the last 48 hours, I have not been able to reach the IGP".More news: Donors pledge $4.4b in Syria aid for 2018
The non appearance of the IGP became clear when Deputy Senate leader, Bala Ibn'Nallah moved that order 17 of senate rules which deals with the invitation of IGP be considered. "Something is also worrisome and it is his feeding".
He said efforts by him to get the police boss to discuss the security situation in the country had failed. "Even that has not been successful".
The senate debated killings by suspected Fulani herdsmen across the country.
The lawmaker was due to be arraigned in court over the charges of criminal conspiracy and unlawful possession of prohibited firearms alongside Osama and Small who escaped from their prison cell. He stated the police were yet to charge the doctors for any offence.
Melaye was hospitalised on Tuesday after having serious scuffle with operatives of the Special Anti-Robbery Squad (SARS), who laid siege on his house in Abuja on Monday and eventually arrested him on Tuesday. The lawmaker was declared wanted alongside Mohammed Audu, son of a former governor of Kogi state, Abubakar Audu.
Also speaking, the INEC Resident Electoral Commissioner for the state, Prof.