Officers from Westminster have today, Tuesday 4 June, arrested two people - a 35-year-old man [A] and a 24-year-old woman [B] - by appointment at a central London police station on suspicion of being concerned in the supply of Class A drugs.
Both have now been bailed pending further inquiries to a date in late July.
Searches have been completed at two residential addresses.
Former X Factor judge Tulisa Contostavlos arrived home in Hertfordshire today following her arrest on suspicion of supplying class A drugs.
The 24-year-old singer first found fame with N-Dubz and was dropped as a judge on The X Factor last month.