Foreign Secretary Liz Truss has rejected claims from allies of Boris Johnson that the inquiry into whether he lied to Parliament over partygate risks becoming a "kangaroo court".
She said on Thursday that she "implicitly" trusts the Privileges Committee to investigate the Prime Minister and defended the decision for Labour grandee Harriet Harman to chair it.
The Commons inquiry that could determine Mr Johnson's fate in office began on Wednesday with a decision to allow Downing Street staff to give evidence anonymously if necessary.