The Blandford Borough Police were established 1 February 1836. The Watch Committee, chosen from the Council of the borough, commenced their labours by appointing, what had been long wanting in the town, an efficient day and night police. Mr. Francis Davis was appointed Superintendent.

On 1 January 1856, at the Dorset Epiphany Sessions, a motion was proposed to take the necessary steps for the establishment of a Rural Police for the Blandford Division. It was stated that eight Constables were considered necessary, together with a Sergeant and Superintendent.

It was also suggested, to save expense, that the four divisions of Wimborne, Sturminster, Shaftesbury and Blandford should be united, so as to be under the superintendence of one Chief Constable. It was further stated the whole county should be taken into consideration, that it was advisable the establishment of a County Police Force must eventually take place.

The motion to establish the Rural Police for the Division of Blandford was agreed to.

George Underwood was appointed Superintendent of Blandford Borough Police in 1870, preceded by Superintendent Brown. Mr Underwood was previously Sergeant at Bradpole and Bridport and Superintendent at Dorchester and Shaftesbury. He was one of the earliest to join the Dorset Constabulary. Superintendent Underwood was certified medically unfit for further duty and retired in 1882 on a pension of £80 per annum after 26 years' service, 21 of which with the rank of Superintendent.

Blandford Borough Police became part of Dorset Constabulary 1 April 1889. In April 1889, the Standing Joint Committee was given the management and control of a county and borough police force of one hundred and fifty-two men, at an annual cost of about £11,000 for pay and clothing alone and £21,000 for police stations and justice rooms. Two meetings were held before 1 April, and a number of matters provisionally arranged for confirmation immediately after the appointed day. It was deemed a very desirable course to adopt, as no less than six boroughs, viz., Blandford, Bridport, Dorchester, Lyme, Regis, Shaftesbury, and Wareham were amalgamated with the county. The Committee met for the first time as a fully constituted Authority 15 April. A sub-committee was appointed to report on the proposed purchase of the Blandford Borough Police premises.

At the meeting, the claim by Head Constable Cole, of Blandford, was received, and after consideration the Committee determined to grant a gratuity of £75 in satisfaction of all claims, Head Constable Cole having only been appointed during the past two years.

The proposed establishment and pay of the force with the amalgamated boroughs was as follows:

For a total establishment of 150

The total population in the amalgamated district, according to the census of 1881, was 165,003, and an area 619,894. The number of persons to each Constable, 1,100; number of acres to each Constable, 4,132.

It was mentioned they would shortly move that the number of Superintendents be reduced, and that Inspectors be appointed in certain amalgamated divisions to act under Superintendents, thereby saving a large annual expenditure. The necessary orders were given for clothing to be supplied to the Constables transferred from the boroughs.