By The Nation
The Phaholyothin police were told that a woman was standing on the ledge of the bridge and threatening to jump.
Police and members the Poh Teck Tung Foundation found the 45-year-old woman standing outside the fence while holding the fence with both hands.
Col Chettha Sawangsuk, commander of Phaholyothin police, said the woman sounded confused, like she had a mental-health disorder.
She claimed police planted drugs on her and raised a false drugs charge.
Police closed the lane below and spent about half an hour trying to convince her to climb back.
A policeman and rescuer eventually grabbed her.
Chettha said she did not face any drug charges but she had faced three theft charges in 2013.
She was sent to a hospital to be evaluated by a psychiatrist before police decided whether to press charges.