What happened to pledge of police unit?

Sir,

Should the A82 be closed with a major accident at Onich, drivers travelling north would need to divert back to Crianlarich, then through Killin and Pitlochry to Spean Bridge.

When the new police station at the Blar was proposed one of the advantages was that there would be an accident investigations unit. Kath Small,

Old Post Office, Ballachulish.