The word "invoking" is correct and usable in written English.
You can use it when you are referring to the act of citing something, such as a law or a rule, as an authority or justification. For example, "The mayor cited the town's noise ordinance while invoking the need for public peace and quiet."
Tory supporters of equal marriage are making an eleventh hour plea to fellow Conservative MPs to vote in favour of reform by invoking the record of Margaret Thatcher, who supported the legalisation of homosexuality in the 1960s.
Invoking Martin Luther's "Here I stand" may have been his own idea but dwindled without "I can do no other," which in the circumstances might have brought disbelieving giggles.
From the moment that he came into power in 1987, successive French governments had supported his regime, spurred on by his invoking Algeria and the threat of Islamist terrorism as a possibility in Tunisia.
The government's reluctance to implement the 2005 Hirst judgment on votes for inmates "undermines its credibility when invoking the rule of law to pressurise Russia – and other countries in a similar position – to comply with international human rights obligations", the JCHR said.
Invoking the notion of equal pay proved a very skilful diversionary tactic.
Per contra, Thatcher's denouncing "the enemy within", invoking laws against union representation at GCHQ and ordering a three-line whip to fight Richard Shepherd's private member's bill on the Official Secrets Act were irrational.
Invoking the foundation of the French republic, he said: "We need a revolution in business".
"But no one here, including me, expected to hear me say, 'I'm Lindsey Graham, and I'm running for president of the United States.'" Invoking what he called Ronald Reagan's "policy of peace through strength", Graham said he had "come to the conclusion that we will never achieve peaceful coexistence with radical Islam".
He has disappeared from public view after invoking his right against self-incrimination when called as a witness in an Abu Ghraib-related trial that year.
"It's sad to me that the board are invoking sexual shame in a false way to advance their agenda.
This week, besides the onslaught on parliament, they rioted in East Java leaving one demonstrator dead.Although he has never said it outright, Mr Wahid has also flirted with the idea of invoking emergency powers.
