RAWALPINDI-In the wake of the current military operation in Malakand against the militants, police carried out door-to-door search operation in the areas of PS Airport and Taxila. Police conducted operation in the areas like Gharibabad, Block A, B, C and Scheme III while total 810 houses were searched in both operations. Meanwhile, a total 1586 persons were checked and 169 persons were detained for further investigations. The majority of the detained persons are of Afghan nationals and investigations are underway and progress would be announced soon. In this regard, City Police Officer (CPO) Rawalpindi Rao Mohammad Iqbal said that present security situation in the country demanded an active role of police and Rawalpindi police had more responsibility than others, as Pindi is a gateway from Frontier Province.