N-COUNT
If police officers carry out a dawn raid, they go to someone's house very early in the morning to search it or arrest them. 凌晨突袭 (尤指警方为搜捕罪犯而展开的)
例：
The dawn raids Tuesday were carried out by about 170 policemen.
The laptop computer he had been carrying was confiscated for forensic analysis, but Siddique was allowed to return home before being arrested in the dawnraid on his home just five days later.
When both the justices and the fired marshals defied him by holing up in the courthouse in Tahlequah, Oklahoma, the Cherokee capital, in June 1997, Mr Byrd's handpicked guards made a pre-dawn raid to evict them.