Here is the response from the Government to the petition posted:

https://petition.parliament.uk/petitions/173199

"The Government is clear that, at a time of heightened security threat, it is essential our law enforcement, security and intelligence services have the powers they need to keep people safe.

The Investigatory Powers Act transforms the law relating to the use and oversight of Investigatory powers. It strengthens safeguards and introduces world-leading oversight arrangements.

The Act does three key things. First, it brings together powers already available to law enforcement and the security and intelligence agencies to obtain communications and data about communications. It makes these powers – and the safeguards that apply to them – clear and understandable.

Second, it radically overhauls the way these powers are authorised and overseen. It introduces a ‘double-lock’ for the most intrusive powers, including interception and all of the bulk capabilities, so warrants require the approval of a Judicial Commissioner. And it creates a powerful new Investigatory Powers Commissioner to oversee how these powers are used.

Third, it ensures powers are fit for the digital age. The Act makes a single new provision for the retention of internet connection records in order for law enforcement to identify the communications service to which a device has connected. This will restore capabilities that have been lost as a result of changes in the way people communicate.

Public scrutiny

The Bill was subject to unprecedented scrutiny prior to and during its passage.
The Bill responded to three independent reports: by David Anderson QC, the Independent Reviewer of Terrorism Legislation; by the Royal United Services Institute’s Independent Surveillance Review Panel; and by the Intelligence and Security Committee of Parliament. All three of those authoritative independent reports agreed a new law was needed.

The Government responded to the recommendations of those reports in the form of a draft Bill, published in November 2015. That draft Bill was submitted for pre-legislative scrutiny by a Joint Committee of both Houses of Parliament. The Intelligence and Security Committee and the House of Commons Science and Technology Committee conducted parallel scrutiny. Between them, those Committees received over 1,500 pages of written submissions and heard oral evidence from the Government, industry, civil liberties groups and many others. The recommendations made by those Committees informed changes to the Bill and the publication of further supporting material.

A revised Bill was introduced in the House of Commons on 1 March, and completed its passage on 16 November, meeting the timetable for legislation set by Parliament during the passage of the Data Retention and Investigatory Powers Act 2014. Over 1,700 amendments to the Bill were tabled and debated during this time.

The Government has adopted an open and consultative approach throughout the passage of this legislation, tabling or accepting a significant number of amendments in both Houses of Parliament in order to improve transparency and strengthen privacy protections. These included enhanced protections for trade unions and journalistic and legally privileged material, and the introduction of a threshold to ensure internet connection records cannot be used to investigate minor crimes.

Privacy and Oversight

The Government has placed privacy at the heart of the Investigatory Powers Act. The Act makes clear the extent to which investigatory powers may be used and the strict safeguards that apply in order to maintain privacy.

A new overarching ‘privacy clause’ was added to make absolutely clear that the protection of privacy is at the heart of this legislation. This privacy clause ensures that in each and every case a public authority must consider whether less intrusive means could be used, and must have regard to human rights and the particular sensitivity of certain information. The powers can only be exercised when it is necessary and proportionate to do so, and the Act includes tough sanctions – including the creation of new criminal offences – for those misusing the powers.
The safeguards in this Act reflect the UK’s international reputation for protecting human rights. The unprecedented transparency and the new safeguards – including the ‘double lock’ for the most sensitive powers – set an international benchmark for how the law can protect both privacy and security.

Home Office"

Again in their response, I have no idea what they really said. It's not clear other than some vague line on terrorism and safety. It's all a mixture of half speak and jargon.