What effort was made to find the necklace after the ball in the short story the necklace?

The efforts made to find the necklace after it had been lost were that they looked among the folds of Mmme. Loisel's skirt, cloak and pockets; her husband then went out and spent several hours retracing their entire route from the ball to home; he went to the police and to the newspapers to offer a reward for its return; he went to various cab companies to see if it had been turned in.