What kind of a raid is it when the police are not armed, do not wear body armor, nor has the ability to detain a suspect (eg. handcuffs)?

"Oake was not wearing body armour, none of the police involved in the raid were armed, and the suspect was not handcuffed at any time during the hour-long raid on the Manchester flat, police said."

From this article:

http://www.cnn.com/2003/WORLD/europ...ions/index.html