In 1838, lub nroog Boston tau tsim thawj tub ceev xwm Asmeskas, ua raws li New York City xyoo 1845, Albany, NY thiab Chicago xyoo 1851, New Orleans thiab Cincinnati hauv 1853, Philadelphia xyoo 1855, thiab Newark, NJ thiab B altimore hauv 1857 (Harring 1983, Lundman 1980; Lynch 1984).
Thaum twg tub ceev xwm tsim hauv ntiaj teb?
thawj lub nroog tub ceev xwm tau tsim tsa hauv Philadelphia hauv 1751, Richmond, Virginia hauv 1807, Boston hauv 1838, thiab New York hauv 1845. US Secret Service tau tsim nyob rau hauv Xyoo 1865 thiab yog rau qee lub sij hawm lub koom haum tshawb fawb tseem ceeb rau tsoomfwv.
Thaum twg thiab vim li cas tub ceev xwm tsim?
Cov tub ceev xwm niaj hnub pib hauv thaum ntxov 1900s, tab sis nws keeb kwm rov qab mus rau cov tebchaws. Nyob rau sab qab teb xyoo 1700s, pawg neeg saib xyuas tau tsim los txwv cov qhev khiav tawm. Tam sim no cov tub ceev xwm thoob plaws lub tebchaws tab tom ntsib kev liam ntawm kev ua phem thiab kev ntxub ntxaug lwm haiv neeg.
Thaum twg tub ceev xwm pib hauv Tebchaws Meskas?
Txoj kev txhim kho cov tub ceev xwm niaj hnub
Thawj cov kev pabcuam pej xeem-nyiaj pab tub ceev xwm puv sijhawm tau tsim tsa hauv Boston hauv 1838, New York hauv 1844, thiab Philadelphia Xyoo 1854. Cov qhev nyob rau sab qab teb raug tshem tawm thaum kev tshem tawm kev ua qhev nyob rau xyoo 1860.
Leej twg tsim tub ceev xwm?
Lub tswv yim ntawm kev tub ceev xwm raug coj los ntawm Sir Robert Peel thaum nws los ua Tus Tuav Ntaub Ntawv Hauv Tsev1822. Peel's Metropolitan Police Act 1829 tau tsim kom muaj tub ceev xwm puv sijhawm, muaj kev tshaj lij thiab koom nrog hauv nruab nrab rau thaj tsam London loj dua hu ua Metropolitan Police.
