The Department of Justice labors, as usual in all the great cities, meant a vast amount of time and energy expended on the part of A. P. L. men, with the usual percent of win, lose, and draw—all offered in the infinite variety afforded by the California climate. Some of the cases were odd, some mysterious, and a good many of them big. Perhaps a few from the many turned in by Frisco may be found interesting, though chosen practically by chance. One of these is a wireless case. It should not be dismissed as another “mysterious signal” flivver until read quite through to its close. Mrs. B—— and her mother had moved into a flat on Williard street. The persons who occupied the flat before them came back to get some plates and other material, which looked so strange that Mrs. B—— thought there had been a wireless plant there, so she reported it. They refused to give up the fixture material then in their possession. The place was on a high hill overlooking the bay and would have been an ideal locality for a wireless plant which might have given information to the enemy. Operative No. 440 took over this case. He found that the house stood at the edge of a wood on a rocky hill. The two women explained that the place had been occupied by a man named G—— who seemed very mysterious. He would hang around the house all day and come home at different hours. He moved away suddenly. He used to make trips in the woods with people not known about there. Operative found in the house several base plates for electric light plugs, also electric wires grounded on the water and gas pipes, and also a hole cut in the side of the house, as is done when a high tension wire is passed through. Mrs. B—— stated that at night sounds similar to those made by a wireless sending outfit often were heard, also that a sound representing rapping signals occurred at the rear of the house. The operative, making all allowances for a woman’s nervousness, returned that evening. Sure enough, he heard the sounds persistently as described. They did come from the rear of the house, and, although examination was made there at once and next day by daylight, he was unable to tell what made the sounds. The case now looked promising, so the operative again went over the premises. He could not find any trace of wireless apparatus. He did find a pipe starting at the edge of the woods and tried to follow this. It led to the brink of a high bluff. Just at the edge of the bluff the operative almost stepped on a rattlesnake, and in attempting to escape he rolled to the bottom of the bank, carrying the pipe with him! When he came to, he was free of the snake. He looked at his pipe, but found it clogged with dirt. It therefore could not have been used lately as a wire conduit.