South Korean police today raided Google's local office to investigate whether the global search company used its mobile phone advertising platform to illegally collect private location data. Investigators were sent to Google's Seoul office to secure evidence related to its AdMob platform, the head of the police cyber crime unit, Chang Byung-Duk, told AFP. The raid followed allegations that Google's mobile advertising agency, AdMob, had illegally collected data on individuals' locations via smartphone applications, he said. The raid came a week after South Korea's telecoms regulator launched an inquiry into Apple to see whether the US giant's collection of location data from its iPhone and iPad users violates privacy rules.