proceduralist
/prəˈsiːdʒərəlɪst/ /prəˈsiːdʒər(ə)lɪst/noun
1A person who adheres strictly to (established or approved) procedure; a person who practices or specializes in a particular procedure, especially in law or politics.
2 Medicine. A physician or surgeon who is skilled at diagnostic or therapeutic procedures, or whose work consists largely of carrying out such procedures.
adjective
Based on or advocating a strict adherence to procedure.
Origin
1930s; earliest use found in Illinois Law Review. From procedural + -ist.