Police want to speak to these people in connection with cycle thefts in Sussex at train stations - click here to view gallery.
Transport officers are asking anyone who recognises someone in the images or has information about the thefts to get in contact.
The investigation is led by PC Billy Burstow, based at BTP's Brighton office, and follows the recently-launched Operation Wiggins, a nationwide initiative to crackdown on cycle theft at train stations across the country.
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As part of the operation, posters will be placed at bike racks advising cyclists how to correctly and securely lock their cycles.
PC Burstow said: “Bicycles remain a popular target for thieves but there are a number of ways people can help lessen their chances of becoming a victim of crime, like ensuring their property is adequately marked and secured.
“It's also important to remember to register your bike and ensure a solid lock is used to secure it. If a bike is adequately marked, it makes it much easier to identify and therefore helps reduce the risk of theft.
”BTP officers regularly conduct cycle crime awareness surgeries at stations across Sussex to offer crime prevention advice and identify the top locations for bike theft, targeting them through covert and overt policing operations to catch would-be offenders in the act.
“We continue to work closely with train companies to tackle cycle crime.”
Anyone who recognises any of the people pictured should contact British Transport Police on Freefone 0800 40 50 40 or text 61016 quoting reference B3/LSA of 03/01/13 quoting the image number.