Senior jockey Stanley Chin Kin-ming and his girlfriend Yeung Ka-yee - two of the 13 people rounded up in the ICAC race-fixing probe - have been ordered to report back to anti-graft agents tomorrow. Chin, 24, and Yeung, who were released from detention late on Wednesday night after raising $500,000 and $100,000 cash bail respectively, will be the first of the 10 former detainees to report back. The other eight, seven of whom are jockeys or former jockeys, have been told to report back at an undisclosed later date. They were all freed on cash bail plus surety of between $100,000 and $500,000. On Wednesday, former apprentice jockey Keith Kwok Ting, 24, was jailed for six months after admitting he took almost $200,000 in bribes to rig the results of two races.