Germany must strengthen its anti-terrorism measures, the ruling party of Bavaria will argue at its conference next week, not long after a major security alert in the southern state's capital of Munich put parts of the city on lockdown.
The Christian Social Union's (CSU) will push to revoke the passports of people with dual citizenship who have travelled to join terrorist militias abroad, according to a draft document seen by dpa.
Convicted terrorists would be placed under round-the-clock surveillance using electronic tagging as part of the proposed measures from the CSU, a key ally and coalition partner of Chancellor Angela Merkel.
The anti-terrorism proposals are to be presented to the party's parliamentary faction, seated in Berlin.
The plans also aim "to dry up the financial sources of terrorist organizations" by confiscating suspicious funds and to monitor terrorists' use of social networks, according to the party paper, which was drafted before friendly foreign intelligence agencies alerted Germany to a planned attack in Munich on New Year's Eve.
The warning prompted a lockdown at two train stations in the city, including the central one. No arrests have been made and a police investigation into identifying the potential suspects is ongoing.
Germany's intelligence service estimates that around 1,100 potentially violent Islamists are currently living in the country, 430 of whom have already committed serious crimes.