South Yorkshire Police's Project Servator officers can deploy anywhere across South Yorkshire, and yesterday they were at Meadowhall.
The force says Servator deployments use specific tactics to spot tell-tale signs that someone may be planning or preparing to commit a criminal act. This can include police in plain clothes.
Project Servator is a national policing approach that uses a mix of visible and plain-clothes officers alongside other tactics to deter and detect crime.
