CBEC’s Anti Smuggling Unit directs field formations to route their requests for issuance of Look Out Circulars (LOC) through DRI (Hqrs) in cases relating to contravention of Customs Act provisions and through DGCEI in cognizable offences under Central Excise Act and Finance Act; However, practice of opening LOC in a particular Airport for short duration may continue, as in such cases LOC is required to be opened immediately on specific information / inputs 

Instruction F. No. 394/193/2015-Cus (AS) dated December 16, 2015
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