The Intelligence and Security Committee (ISC) has become the latest government committee to issue a highly critical response to the Draft Investigatory Powers Bill.
The ISC report (PDF) implies that the bill has so many faults that home secretary Theresa May ought to withdraw it and start again.
"Taken as a whole, the draft bill fails to deliver the clarity that is so badly needed in this area," the report stated.
"The issues under consideration are undoubtedly complex, but it has been evident that even those working on the legislation have not always been clear as to what the provisions are intended to achieve.
"The draft bill appears to have suffered from a lack of sufficient time and preparation."
In particular, the ISC said that it would like to see 'class bulk personal data set warrants' removed from the document, and that the definition of 'communications data' is "currently inconsistent and confusing".
The tech sector, not just in the UK but globally, has also been highly critical of the bill, some warning that it will put off investment and drive away entrepreneurs.
TechUK, which represents the UK technology industry, backed the ISC's findings. "Today's report from the ISC again makes it clear that the bill lacks clarity on fundamental issues, such as core definitions of key terms, encryption and equipment interference," said Antony Walker, deputy CEO of TechUK.
"Our members are unsure exactly what is meant by 'Internet Connection Records', how they will be gathered, stored and accessed. This kind of detail is crucial to understanding the impact of the proposed bill."
Open Rights Group executive director Jim Killock also agreed with the ISC that the bill looks rushed.
"There have been suggestions that a new version of the bill will be published by the end of February. The Home Office needs a lot longer than two weeks to redraft the bill. Theresa May must ensure that the ISC's very serious and considered demands are dealt with in full," he said.
"Rushing through legislation has to stop. It's time for a proper debate about whether bulk surveillance powers are acceptable in a democracy like the UK."
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