CHECK POINTS:

     Searches conducted on checkpoints are valid for as long as they are warranted by the exigencies of public order and are conducted in a way least intrusive to motorist. For as long as the vehicle is neither searched nor its occupants subjected to body search, and the inspection of the vehicle is limited to visual search, said routine checks cannot be regarded as violative of an individual's right against unreasonable search (People vs. Vinecario, G.R. No. 141137, January 20, 2004, 420 SCRA 280).