2 adjectives to describe pursuance

It was a little company of the ancient brotherhood of lamp-lighters, seduced, like the rest of us, from the strict pursuance of duty by the vagabond music.

Was the law, in pursuance of which the decision was given, so manifestly unjust as to demand, not the alteration of the law for the future, but the passage through Parliament, ex post facto, of an Act to prevent the decision from taking effect between the parties according to its tenour? Third.

2 adjectives to describe  pursuance