The investigator proceeded at the crime scene?
Is this correct? Can I use the word went instead?
The investigator proceeded at the crime scene?
Is this correct? Can I use the word went instead?
Your sentence is incorrect. @Alex is correct that at is not a preposition which is usually paired with proceed.
While at does indicate a place (or a time), it tends to be a stationary place: at one's address, one's house, one's favorite restaurant, at high altitudes. One looks at a photo, sits at a table, relaxes at the movies, is puzzled at the crime scene.
To/toward(s) express motion, as does proceed. One goes to a home, one turns towards a sound, or to can be used for expressing contact (she applied lacquer to her nails).
to implying motion can also be expressed as towards: (O.E. toweard "in the direction of") toward a point, person, place, or thing, implied or understood.
The third German machine gun fired on Pfc. Dutko... wounding him a second time as he proceeded toward the enemy weapon...
Having said all that, you can substitute went and be correct.
In the dark, and in a bitterly cold drizzle, which made the handling of metal objects more hazardous, he proceeded to remove the bombs, dismantling each in turn.