CCTV images have been released of people detectives would like to speak to in connection with three separate incidents of shoplifting, theft and fraud.
In the first, three steaks were stolen from Claredon Service BP Station, in Elstree Way, Borehamwood, at 1.30pm on Monday, March 4.
An unattended iPhone was stolen from Morrisons, in Stirling Way, between 6.40pm and 6.50pm on Tuesday, March 12.
Later in the month, a man asked another if he had lost £10 to distract him before stealing his credit card in the same supermarket on Saturday, March 16 at around 2pm.
Another man used the stolen credit card to withdraw £200 in cash.
People with information are being encouraged to ring the police on 101 or Crimestoppers anonymously on 0800 555 111.
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