Show PROVE EASY PREY FOR tUR 8 YOUTHfUl THUGS i BERKELEY Cal Cal- Jan Jan- 15 E Dight I youths who police pollee say eay wa waged ed a a. campaign campaign cam cam- of holdups holdup on spooners for a period of three thre months i were under arrest here today An Instrument Instrument In- In I I strument known among police as the thelie lie detector I was wag largely largel Instrumental In trapping the youths who police say I con confessed to many robberies I The The lie ne detector Invented b by a i Berkeley patrolman is an instrument Instrument nt used to record the blood pressure of ofle I those le charged u with crime The theory thear is that rapidly changing human emotions emo emo- when t th subject Is telling a lie will cause a decided change in the pressure of th the blood The band police say eay did their first holdup as a prank The victims however however however how how- ever handed oVer o their valuables without without without with with- out question Then It Jl was police re relate re- re late that the youths found the plan so lucrative that tb they to make a practice of f holdups |