The public will be given the right to ask for tougher sentences for nine further terror-related offences, the government has confirmed.

Changes to the Unduly Lenient Sentence (ULS) scheme mean that people found guilty of crimes such as tipping off terrorists about an investigation, or flouting terror prevention court orders, could see their sentences increased if victims or the public think the punishment is too light.

The extension follows the decision in July to add 19 terror offences to the scheme, with ministers wanting to ensure sentences reflect the impact terrorism has on victims and communities.

Dominic Raab, justice minister, said: ‘We keep counter-terrorism powers under constant review. These changes will strengthen our ability to punish and deter those who tip off individuals involved in terrorism, and reinforce the conditions imposed by the authorities on individuals subject to monitoring, supervision or control.’

The scheme gives anyone the power to ask the attorney general to review a sentence and subsequently decide to refer a case to the Court of Appeal for reconsideration.

In 2016, 141 criminals had their sentence increased through this mechanism – a record, albeit a tiny proportion of the 80,000 Crown Court cases heard each year.

The new crimes announced include instances where a person learns of terrorist activity through their trade, profession or employment, and fails to report this information to the police. For example, an accountant discovering a client may be funding terror, the government said. 

Other offences relate to breaching orders imposed to protect the public from terrorism, for instance someone suspected of involvement in terrorist activity overseas returning to the UK in breach of travel restrictions.