Shadow home secretary Yvette Cooper says Theresa May needs to sort out the "catalogue of chaos at border control".
Speaking of John Vine's report findings, she said: "She needs to stop drug-smuggling information being deleted and get the proper border controls in place, rather than relying on divisive gimmicks like ad vans instead.
"The Home Secretary must urgently explain why hundreds of thousands of possible drug-smuggling records were deleted in 2012 without having ever been read.
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The teenagers, aged 19 to 15, appeared in custody at Westminster Magistrates' Court on Saturday, supported by their families.
Labour must "broaden its reach" in order to win votes off the Conservatives, deputy leader Tom Watson has said.
Nicola Sturgeon said the London mayor's comments that likened Scottish nationalism to racism were a sign of 'desperation'.