ISLAMABAD: On the information of the presence of hundreds of suspected persons in the federal capital, the law enforcement agencies have become alert amid the reports that they have apprehended 150 persons and started investigations. However the operation seems to be next to nill in the suburbs, rural areas and katchi abadis of Islamabad. Operation clean up has been geared up against the miscreants in the federal capital in the wake of the recent wave of terrorism in the country. A heavy cache of arms and ammunition has been recovered from 150 persons who have been arrested during the four days of operation clean up. Police sources told Daily Times that important information had been ascertained from the arrested suspects. Federal police has taken steps to make security of capital fool proof. Responsibilities have been assigned to police force following the supply of 60 vehicles to halting points set up by the IG Islamabad. According to SSP Sajid Kayani, two to three halting points have been set up around the main buildings and educational institutions operating in the jurisdiction of every police station. Police vans will continue to patrol in these areas. Policemen deployed at the halting points will write a dairy on daily basis. The daily report will be forwarded to the IG Police Islamabad through SSP Operations. The police deployed at the halting points will change its side after every 10 minutes and perform its duty.