[2] Each of the 12 Basic Command Units (BCUs) has a VSU which patrols in plain clothes and unmarked vehicles as well as in marked police vans or carriers.

Each VSU has approximately 50 officers, predominantly police constables despite being a part of the Criminal Investigation Department (CID).

[4] In response to a continued increase in street violence, the Metropolitan Police Service implemented the VSUs by consolidating and expanding already existing teams throughout the force.

[3] Each VSU should be equipped with at least two high visibility marked police minibuses, and at least 3 "Q" unmarked covert cars, all with response capabilities.

There may be an interview process and desirable attributes include experience in proactive policing, an understanding of the Regulation of Investigatory Powers Act, understanding manhunts and fugitive hunting, being trained in Level 2 Public Order and rapid entry, being trained in the use of tasers, covert or standard, and being an advanced or response police driver.

[3] During the initial phase of recruitment, officers from anywhere in the MPS could apply to address a shortage of volunteers from some BCUs.

[7] The VSU is part of the Frontline Policing Directorate and as such is led by the senior leadership team of the BCU.