Pair took purses from shoppers in Watford, St Albans and Harpenden.
CCTV Released After Watford Sex Attack
Hertfordshire Police have released CCTV of a man they want to trace after a serious sex assault in Watford.
The force says the image is of a man suspected to be a 'key witness'.
The alleged offence occurred in Gaumont Approach at around 1am on Saturday, March 29th.
A spokesperson from the force said: "Officers from the Sexual Offences Investigation Team would like to speak with the man pictured.
This man may not have known what had happened but he could be a key witness.
If this is you, please contact police.
Anyone who recognises the man should also make contact with Detective Constable Liz Heath in SOIT via the Herts police non-emergency number 101 quoting crime reference number C1/14/1365.
Alternatively call Crimestoppers, the independent charity, anonymously on 0800 555 111."
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