Complex sentence: The former police chief, K.C. Lum, who was promoted from the vice division, has been accused of favoritism, lax management and his selection as chief has been tainted by ethics allegations.
Split into simpler sentences: The former police chief, K.C. Lum, who was promoted from the vice division, is also under fire. He's been accused of favoritism, lax management and his selection as chief has been tainted by ethics allegations.