An investigation will be carried out into complaints about police dogs biting football supporters after trouble flared after a match between Wolves and Port Vale.
Six people have complained to the Independent Police Complaints Commission (IPCC) following the match at Port Vale on August 31.
The IPCC has told Staffordshire Police to draft in a dog handler from another county’s force to oversee the process.
Twenty-three football fans were arrested after violence erupted outside Port Vale’s ground and in Burslem town centre.
An IPCC spokesman said officials were investigating six separate complaints from members of the public in relation to dog bits sustained around the match which Wolves won 3-1.
The organisation said it had directed Staffordshire Police to carry out a local investigation into the complaints.
A spokesman added: “If complainants are not satisfied with the findings or outcome of the local police investigation, they will have a right of appeal to the IPCC.”
Chief Superintendent Juliet Prince, from Staffordshire Police, said: “Following any large police operation, we take time to review our planning, actions, tactics and decision making so we can continue to develop our approach for the future. This is currently taking place.
“I am obviously aware that some fans have been unhappy with the policing operation and this will be considered as part of our review.”