Police officers across the Northern province this week had their leave cancelled until May 20 citing security fears ahead of May 18 Tamil genocide remembrance events.
Senior officers said that extra police officers would be needed to prevent violence.
Tamils across the North-East and worldwide will be commemorating the genocide of Tamils in the final stages of the armed conflict at remembrance events on May 18.
Previous years have repeatedly seen increased military and police personnel in the North-East, citing the risk of violence.
Civil society groups have criticised the increased securitisation as a means of intimidation and harassment of Tamils who are exercising their right to remember their loved ones.