Delhi Police on Wednesday issued detention orders for two British "plane-spotters" who were caught for allegedly recording conversation between pilots and Air Traffic Control, even as it is yet to press charges against them.
The Foreigner Regional Registration Offices (FRRO) of the city issued the detention orders for the Britishers and the two would remain at the Lampur detention centre till verification process is complete, sources said here.
Investigators said they are exploring the possibility of booking Stephen Hampston (46) and Steve Martin (55) under the Indian Telegraph Act for their controversial act, which the Home Ministry had termed illegal.
The Britons, who are employed with Railways in UK, were confined to Radisson Hotel near the international airport here from Monday night after the hotel staff reported to police that they were suspicious about their activities.
"We are verifying their antecedents.