Sri Lankan police officers inspect the identification papers of a driver at one of the many security checkpoints in Colombo. Sri Lankan police officers inspect the identification papers of a driver at one of the many security checkpoints in Colombo, Sri Lanka on November 5, 2004. Sri Lankan police are reinforcing checkpoints in Colombo with 1,000 more officers in response to a wave of killings of army and police informants and opponents of Tamil Tiger rebels, officials said on Friday. REUTERS/Anuruddha Lokuhapuarachchi