Use "in letter and spirit" in a sentence

1. In the 2016 Assam Assembly elections, the Bharatiya Janata Party (BJP)’s promise to implement the Assam Accord in letter and spirit helped it win …

2. (c) whether it is also a fact that only a minority view held that India was engaging in water aggression and was willfully not adhering to the Treaty in letter and spirit; and

3. We have agreed to a mechanism and the recommendations of the Judicial Committee on Prisoners and the Consular Access Agreement that we have signed in Islamabad should be followed in letter and spirit.